Science with The Amoeba Sisters
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First, a few Updates from the Amoeba Sisters!

Newest Resources and Other Updates

1. We've added NEW resources for the following topics. You can also find all of these by scrolling down in the alphabetized topic list OR checking out our new resources menu. 

  • Excretory System
  • Nervous System (FREE student handout on this page) + KEY on TpT
  • Muscle Tissue and Sliding Filament Model
  • Respiratory System
  • Integumentary System
  • Plant Structures and Adaptations (updated video & FREE TpT Easel)
  • Enzyme Examples, Cofactors/Coenzymes, Inhibitors, and Feedback Inhibition TpT Easel
  • Mitosis Poem TpT Easel

    Currently still working on Endocrine resource.
2. New plushies are available for pre-order, thanks to Svaha!!
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Dropbox Folder Option for this Page:

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 5 Important Things to Know About This Folder:
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1. This view-only (which allows you to download) dropbox folder contains all free recap handouts from this webpage [46 as of end of January 2023] all in one place. 

2. The first PDF in the folder reminds about terms of use and addresses some of the main questions we get regarding our free handouts.

3.  This dropbox folder contains free items only. It won't contain items that we sell on TpT - visit here to see all our TpT items.

4. The free recap handouts have official answer keys that we offer on TpT to help support our work. We offer them individually or in 
one mega key bundle. 

5. You can still scroll down on this page to see each alphabetized topic where we have more items for each topic on this page. If you've never used our resources before, we highly recommend scrolling down on this page by topic first as the folder will be overwhelming otherwise.

 What Resources are Listed/Linked on This Page?
​Check out our NEW Video Resource Menu! 
It includes a listing of our resources, suggested use, and standards supported.

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Terms of Use of Video Handouts/Resources:

Our handouts are designed for classroom use, and you can find our terms of use here! Please note: terms of use prohibit publicly posting answer keys made from our handout content as this is a modification of our published content (and a disservice to other teachers and students using them). We do offer official Amoeba Sisters answer keys (linked on this website to Teachers Pay Teachers- TPT) which also have these same terms.

We allow our images and GIFs to be shared on presentations and social media provided they are not edited and that they are not used for financial gain (i.e. our images or GIFs can't be in/on an item that you sell).  Learn more about our terms of use here.


​General Resources Q&A 

I'm searching for a certain topic. How are your resources organized on this page and how do I access them?
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Resources on this page are listed by topic in alphabetical order under the purple terms of use box---scroll down just a little bit more.
I want to use the resources you have, but I'm a little overwhelmed. Can you explain the resources you have?
Please see our Amoeba Sisters Resource List.
What is TPT? How do I join? Can my school have a TPT account or use purchase orders? Can I just get one MEGA bundle of everything you have on TpT?
What is TpT?
Teachers Pay Teachers (TpT) allows teacher creators to be able to financially support themselves for their work which allows us to continue our creating! TpT contains all kinds of amazing resources (in all content areas PK-12!) created by many who are, or have been, in the classroom. While we plan to always have free resources available (and, of course, our videos are always free) as this is part of our mission, we greatly appreciate the support from those that purchase items that we offer exclusively on TpT. 

So I need a TpT account to purchase items on TpT?
Yes, you need an account so you can access the resource at any time. It is free to make an account on TpT. ​Here is their general sign-up page for a personal account: www.teacherspayteachers.com/Signup

Can my school make a TpT account? Or use purchase orders?
Check out the new TpT for Schools. This allows schools to purchase items that they need through one place for their teachers, and it works well with school purchase orders. Even if your school doesn't have a TpT for Schools account, it is possible to purchase something on TPT with a school purchase order.

Can I just get one mega bundle of everything you have on TpT?
We've been asked this more frequently now, and we've found a way to do this.

Option 1) We do have a mega TpT bundle for all resources up to a certain date. 

Option 2) Contact us and tell us all the items that you would like in a custom bundle.
Do all of your videos have accompanying resources?
​No, not all of our videos have an accompanying resource. You can see a listing of our videos with applicable resources here. You can subscribe to our YouTube channel to be notified when we release new videos.
What standards do your videos and resources support?
​Our videos and resources are designed to specifically focus on and support biology TEKS (Texas standards), but there is often standard overlap in many locations. Visit our playlist page for a work-in-progress listing of applicable TEKS and NGSS standards that our videos and resources can help support. However, we want to emphasize that our videos and resources cannot be all inclusive of any standard, because we believe a strong lab foundation, student questioning, and discussion in the course is critical to fully addressing science standards. It is our goal that our videos and resources are supplemental to help support the standards that students are mastering.
Your resources are PDFs. What if I want students to be able to digitally annotate on them?
Check out our page on this here!
I read your suggested use for your handouts. Why do emphasize that you find the handouts work best when used in-class (as opposed to being used as an out-of-class assignment)? 
When these handouts are used in-class (and that can be virtually or in-person) as quick formative checks, you are (1) able to ensure that the responses you receive are from the student that handed it to you, (2) you can assist students for that just-in-time assistance they need, and (3) you can adjust teaching due to reading responses. They can also be built into class discussion. 
You mentioned that your intention with designing the videos and handouts is to provide a foundation for student discussion and student creation. Any ideas on student creation in the science classroom?
Yes! Please check out our "Student Creators" page.  This is also something that we love to present on! :)
How do you handle typos, clarifications, or errors in your videos or video resources?
We think it's VERY important to bring this up despite not receiving this question yet. We want to make sure to model to students that we all make mistakes, and that it is not only important to fix them---but to grow from them too. We strive to be lifelong learners and to share our learning like this (on Twitter) or this (on Twitter)!

We have run into the occasional typo or grammatical error. Sometimes we will get helpful feedback for a video that we should add a clarification or that something was mispronounced. Textbooks have methods to handle errata, and as edutubers, we have also looked for ways to handle this. Here is some information about how we handle different types of these issues in our videos.  Regarding our handouts/resources---if it is a free resource, we can make edits on this page. If it's on TpT, we can update it directly on there. If it is more than a minor typo on TpT, we can send a note to all of the TpT purchasers letting them know why we made an edit.
I notice you have started to add links to your GIFs or comics as resources. Why would one of your comics or GIFs be useful in a classroom?
We have created so many comics and GIFs now on so many of our video topics, and we think they are so powerful in the classroom. Take our comic here about an enzyme (one of our many enzyme comics). Just think about the power of projecting this on a screen and the questions that could be asked about how this relates to the topic being studied. Or, better yet, asking students to come up with the questions. Questions like: How is this comic relating to our content? What kind of environmental conditions could actually denature an enzyme?  If this was reality, would all enzyme "customers" have the same request? These are just some examples, and these opportunities are naturally built into our Unlectured Series! We share our individual comics and GIFs to start up discussions like these, and please feel free to use them---provided you follow our terms of use. 
I notice a pretty big difference between your old videos / old resources vs. your newer ones. Will you update some of your old videos and resources?
As creators, we hope to continue to keep getting better, which means we do redo videos as our art and audio improves. Still, we try to avoid deleting old videos or resources, because we want students to see this journey. We think it's important for students to know everyone starts as a beginner!  If we redo a video, we usually will place the newer version video link on this page and then still keep a link to the old video too. Old handouts can still be used with new videos as we make sure our new videos still include the previous information. Occasionally, we'll update old video handout graphics, but we have found that seems to cause confusion so we are less likely to alter old handouts.
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Our videos are FREE! Subscribing to our channel is also free and would make us the HAPPIEST of amoebas! 
Please subscribe to our YouTube channel? 
Terms of Use
​Reminder: Terms of use prohibit publicly posting answer keys made from our handouts. This is an editing on our copyrighted work (and a disservice to teachers and students using them).

Alphabetical Listing of All of Our Resources

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Scrolling alphabetically but not sure if you're looking for the same topic name we are using? Curious about standards our videos can help support?
Check out our playlist page for assistance!
Alleles and Genes

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Alleles and Genes Recap - Amoeba Sisters PDF
File Size: 441 kb
File Type: pdf
Download File

​On TpT

Answer Key to Alleles and Genes recap.
This helps support our creating!
Archaea

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.

​Note: We have not created a free handout on this topic. 
Asexual and Sexual Reproduction

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Asexual and Sexual Reproduction Recap- Amoeba Sisters PDF
File Size: 447 kb
File Type: pdf
Download File

On TpT

 Answer Key to Asexual and Sexual Reproduction recap.
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This helps support our creating!
ATP

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

ATP Recap- Amoeba Sisters PDF.pdf
File Size: 549 kb
File Type: pdf
Download File

You will find ATP mentioned in many of our comics and GIFs! Find ATP mentioned in our mitochondrion GIF and cell transport GIF on our GIFs page!

On TpT

Answer Key to ATP recap.
This helps support our creating!
Autotrophs and Heterotrophs

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Autotrophs and Heterotrophs Recap- Amoeba Sisters PDF
File Size: 806 kb
File Type: pdf
Download File

Check out our vocabulary comic!

On TpT

Answer Key to Autotrophs and Heterotrophs recap.
This helps support our creating!
Bacteria

Free Video

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P.S. This is our updated video version! You can use the handout with this new version or continue to use the old "Bacteria" video here.  
Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

On TpT

Bacteria Recap- Amoeba Sisters PDF
File Size: 492 kb
File Type: pdf
Download File


​Also, check out our bacteria comics and GIFs!
Answer Key to Bacteria recap. 
​
This helps support our creating!
Biological Levels of Organization

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Biological Levels of Organization Recap- Amoeba Sisters PDF
File Size: 305 kb
File Type: pdf
Download File


​Also, check out our biological levels of organization GIF on our GIF page!

On TpT

Answer Key to Biological Levels of Organization recap.
​
This helps support our creating!
Biomagnification

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Biomagnification Recap- Amoeba Sisters PDF
File Size: 282 kb
File Type: pdf
Download File

On TpT

Answer Key to Biomagnification recap. 
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This helps support our creating!
Biomolecules

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Biomolecules V.2 Recap - Amoeba Sisters PDF
File Size: 561 kb
File Type: pdf
Download File



Also, check out our biomolecules comics and GIFs!

On TpT

Answer Key to Biomolecule recap. 
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This helps support our creating!
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Topic is part of our Unlectured Series!
Body Systems [Human]

Free Video​

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Body Systems Recap - Amoeba Sisters PDF
File Size: 536 kb
File Type: pdf
Download File


​Also, check out our body systems comics! 

On TpT

Answer Key to Body Systems recap. ​
​
This helps support our creating!
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Topic is part of our Unlectured Series!
Carbon and Nitrogen Cycle

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Carbon and Nitrogen Cycle Recap- Amoeba Sisters PDF
File Size: 289 kb
File Type: pdf
Download File


​Also, check out our nitrogen cycle comic!

On TpT

Answer Key to Carbon and Nitrogen recap. 
​
This helps support our creating!
Cells [Intro to]
Note: Search under "P" for "prokaryotic vs. eukaryotic" topic only or "S" for "specialized cells."

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Intro to Cells Recap- Amoeba Sisters PDF
File Size: 715 kb
File Type: pdf
Download File


Also, check out our cell comics and GIFs!

On TPT

Answer Key to Intro to Cells recap. 
This helps support our creating!
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Topic is part of our Unlectured Series!
Cell Cycle [and cancer]

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

See our cell cycle GIF!

Note: We have not created a free handout on this topic, but we offer resources for purchase on TpT.

On TpT

Check out our annotated video script TEMPLATE, which provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
[NOTE: You can purchase it separately above or it comes as part of the Unlectured Series below].
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Topic is part of our Unlectured Series!
Cell Membrane [Inside]

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our cell membrane comics.

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Check out our annotated video script TEMPLATE for this topic. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.

​​

Cellular Respiration

Free Video

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Note: This is the updated video, but the old video will remain up if you prefer it! Our old handout can be used with this new updated video or old video.
​
Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Photosynthesis & Cellular Respiration Recap- Amoeba Sisters PDF
File Size: 517 kb
File Type: pdf
Download File


*Additional Note: Above handout compares two different video clips: cellular respiration and photosynthesis.

​Check out our cellular respiration vs. photosynthesis GIF as well as comics.

On TpT

Answer Key to Photosyn & Cellular Respiration recap. 
​This helps support our creating!
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Topic is part of our Unlectured Series!
Cell Signaling

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our ligand comic! 

​Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Check out our annotated video script TEMPLATE for this topic. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Cell Transport

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Cell Transport Recap- Amoeba Sisters PDF
File Size: 600 kb
File Type: pdf
Download File

On TpT

Answer Key to Cell Transport. 
​
This helps support our creating!
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Topic is part of our Unlectured Series!
Characteristics of LIfe

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.

​Note: We have not created a free handout on this topic. 
Chromosomes and Karyotypes

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our karyotype GIF on our GIF page!

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

For this video, we offer an annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Chromosome Numbers

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Chromosome Numbers Recap- Amoeba Sisters
File Size: 668 kb
File Type: pdf
Download File

We additionally have two helpful GIFs under mitosis and meiosis on our GIF page that show the number of chromosomes during these processes.

On TpT

Answer Key to Chromosome Numbers recap. 
​
This helps support our creating!
Circulatory System

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.
Free Video Resources
We have a circulatory GIF that we think could be very useful! It's under the "Body Systems" category at the bottom of our GIF page.

We also have this infographic about the color of human blood.

On TpT

Select Topic Recap and Key: select recap handouts are styled like our free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
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Topic is also part of our Unlectured Series!
Classification

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Classification Recap- Amoeba Sisters PDF
File Size: 353 kb
File Type: pdf
Download File

We additionally have classification comics and classification GIFs!

On TpT

Answer Key to Classification Recap. This helps support our creating!
Codon Charts [How to Read]

Free Video

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Free Video Resource

How to Read a Codon Chart Video Companion- Amoeba Sisters PDF
File Size: 554 kb
File Type: pdf
Download File

Note: This is a video companion handout instead of a recap handout. What's the difference?  The suggested use and purpose is a little bit different. Check out more info near the top of our page where we talk about suggested use.

On TpT

Answer Key to How to Read a Codon Chart Video Companion. This helps support our creating!
Amoeba Sisters Terms of Use
Reminder: Terms of use prohibit publicly posting answer keys made from our handouts. This is an editing on our copyrighted work (and a disservice to teachers and students using them). ​
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Scrolling alphabetically but not sure if you're looking for the same topic name we are using? Curious about standards our videos can help support?
​Check out our playlist page for assistance!
Dichotomous Keys

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Dichotomous Keys Recap - Amoeba Sisters PDF
File Size: 700 kb
File Type: pdf
Download File

On TpT

Answer Key to Dichotomous Keys recap. 
​
This helps support our creating!
Diffusion

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Diffusion Recap - Amoeba Sisters PDF
File Size: 488 kb
File Type: pdf
Download File

Check out our diffusion comic here and here ---and our cell transport GIFs!

On TpT

Answer Key to Diffusion recap. This helps support our creating!
Digestive System [in Humans]
Free Video
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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.
Free Video Resources
Digestive System Recap - Amoeba Sisters PDF
File Size: 431 kb
File Type: pdf
Download File

On TpT
Answer Key to Digestion recap. ​This helps support our creating!
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Topic is also part of our Unlectured Series!
Dihybrid (& Two-Trait) Crosses

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Dihybrid Crosses Recap - Amoeba Sisters PDF
File Size: 531 kb
File Type: pdf
Download File


Check out our "foil" GIF which can be helpful for dihybrid crosses!

On TpT

Answer Key to Dihybrid Crosses recap.
​
This helps support our creating!
DNA, Chromosomes, Genes, and Traits

Free Video

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Note: Video includes all concepts from our old DNA Structure & Function video (which did not have a handout). Entire heredity playlist is here.
Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

 Free Video Resources

DNA, Chromosomes, Genes, Traits Recap- Amoeba Sisters PDF
File Size: 656 kb
File Type: pdf
Download File


Check out our DNA comics and GIFs!

On TpT

Answer Key to DNA, Chromosomes, Genes, Traits recap.
This helps support our creating!

DNA Replication

Free Video

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Video has been updated! The script is very similar to the script in the original video, but new version has improved art and audio! 
Both videos will remain up!


Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free  Video Resources

DNA Replication Recap- Amoeba Sisters PDF
File Size: 867 kb
File Type: pdf
Download File

Above handout can be used with either updated video (recommended) or original video.

Check out our DNA replication GIF!

​On TpT

Answer Key to DNA Replication recap. This helps support our creating!
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Topic is part of our Unlectured Series!
DNA vs RNA

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

NOTE: We don't always update old handouts when we update a video, but we decided to update this handout! It is very similar but with updated drawings and a few extra questions. Updated handout is below, and just like the old handout, it focuses on two videos. The front (1st page) focuses on the DNA vs. RNA video and the back (2nd page) focuses on the protein synthesis video.
UPDATED DNA vs RNA and Protein Synthesis Recap - Amoeba Sisters PDF
File Size: 445 kb
File Type: pdf
Download File

prefer old handout? Click to Expand
*Note: Handout covers 2 separate videos. Front (1st page) focuses on DNA vs. RNA video & back (2nd page) on protein synthesis video.

OLD DNA vs. RNA and Protein Synthesis Recap - Amoeba Sisters PDF
File Size: 647 kb
File Type: pdf
Download File

Check out our DNA vs. RNA comic and RNA types GIF!

On TpT

Answer Key to DNA vs. RNA and Protein Synthesis recap.
Note: We have updated this to include both keys---one to the original (old) student recap and one to the new (updated) student recap.
Ecological Relationships

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Ecological Relationships Recap- Amoeba Sisters PDF
File Size: 710 kb
File Type: pdf
Download File


Check out our ecology comics and GIF!

On TpT

Answer Key to Ecological Relationships. This helps support our creating!
We additionally offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Ecological Succession

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Ecological Succession Recap - Amoeba Sisters PDF
File Size: 589 kb
File Type: pdf
Download File


Check out our ecological succession GIF!

On TpT

Answer Key to Ecological Succession recap. This helps support our creating!
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This topic is part of our Unlectured Series!
Endocrine System
Free Video
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On TpT
Coming soon! Check back late February 2023.
Endosymbiotic Theory

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our endosymbiotic theory comic!

Note: We have not created any free handouts on this topic, but we offer a resource for purchase on TpT.

On TpT

Select Topic Recap and Key: select recap handouts are styled like our free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Enzymes

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Enzymes Recap - Amoeba Sisters PDF
File Size: 488 kb
File Type: pdf
Download File

Check out our many enzyme comics (don't forget to hit 'previous' under the last comic shown to see the multiple pages) and our enzyme GIFs!

On TpT

Answer Key to Enzymes recap. 
This helps support our creating!
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Topic is part of our Unlectured Series!

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*This covers an advanced topic including feedback inhibition and different type of inhibitors.

On TpT

NEW: We offer a Quick Easel on this resource! Be sure to see the preview video so you can see all the activity slides it includes.
Epigenetics
Free Video
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On TpT
For this video, we offer an annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.Coming soon!
Excretory System and the Nephron
Free video
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On TpT
Select Topic Recap and Key: select recap handouts are styled like our free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Fermentation

Free Video

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*This covers an advanced topic of how cells can still produce ATP even when oxygen is limited.

Free Video Resource

Check out our fermentation comics!

Note: We have not created any free handouts on fermentation, but we offer a resource for purchase on TpT.

On TpT

Select Topic Recap and Key: select recap handouts are styled like our free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!


Food Chains/Webs/Energy Pyramids

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Food Chains/Webs, Energy Pyramids, and Intro to Biodiversity Recap - Amoeba Sisters PDF
File Size: 467 kb
File Type: pdf
Download File

On TpT

Answer Key to Food Chains/Webs and Energy Pyramids recap. This helps support our creating!
Gel Electrophoresis

Free Video

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Free Video Resource

Check out our related comics and gel electrophoresis GIF!

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Select topic recap and key: select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work! 
Gene Regulation (focusing on operon)

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our gene regulation GIF!

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Genetic Drift

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Genetic Drift Recap- Amoeba Sisters PDF
File Size: 580 kb
File Type: pdf
Download File

On TpT

Answer Key to Genetic Drift recap. 
This helps support our creating!
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Topic is part of our Unlectured Series!
GENETICS REVIEW

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

On TpT

​Mega Genetics Review Video Companion on TPT here! This companion handout follows our "Mega Genetics Review" video.

Amoeba Sisters Terms of Use
Reminder: Terms of use prohibit publicly posting answer keys made from our handouts. This is an editing on our copyrighted work (and a disservice to teachers and students using them). ​
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Scrolling alphabetically but not sure if you're looking for the same topic name we are using? Curious about standards our videos can help support?
Check out our playlist page for assistance!
Hardy-Weinberg Equilibrium

Free Video

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Free Video Resources

We also have a Hardy-Weinberg assumptions graphic and two Hardy-Weinberg GIFs!
Hardy-Weinberg Equilibrium Recap - Amoeba Sisters PDF
File Size: 478 kb
File Type: pdf
Download File

On TpT

Answer Key to Hardy-Weinberg Equilibrium recap.
This helps support our creating!
Homeostasis and Feedback

Free Video

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​Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our comic on positive and negative feedback!
didn't you have an old handout and old video for this topic?
Yes! When started in 2013, we made this old homeostasis video and old handout (below). [We did not develop a PDF key for it] If your students are creating videos, you may want to show them this old video as it shows a  very simple beginning. We cherish our journey, and we keep track of our milestones! 

OLD Homeostasis Recap w/ OLD Homeostasis Video- Amoeba Sisters PDF
File Size: 388 kb
File Type: pdf
Download File

On TpT

Select topic recap and key: Select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Immune System

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.
Free Video Resources
Check out our immune system related comics here! Don't forget to click "previous" at the bottom left as it only shows 3 comics at a time.

On TpT

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Topic is part of our Unlectured Series!
Incomplete Dominance, Codominance, Polygenic Inheritance, Epistasis [Non-Mendelian]

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our incomplete dominance/codominance illustration.

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Select topic recap and key: select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work! 
Integumentary System
Free Video
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On TpT
For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Meiosis

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Meiosis Recap- Amoeba Sisters PDF
File Size: 429 kb
File Type: pdf
Download File

Check out our meiosis illustrations and GIFs!

On TpT

Answer Key to meiosis recap. This helps support our creating!
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Topic is part of our Unlectured Series!
Microscopes

Free Video

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Free Video Resource

Microscopes Recap- Amoeba Sisters PDF
File Size: 467 kb
File Type: pdf
Download File

Check out our microscope comic!

On TpT

Answer key to microscopes recap. This helps support our creating!
Mitosis

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Mitosis Recap- Amoeba Sisters PDF
File Size: 2968 kb
File Type: pdf
Download File


Check out our cell division comics (don't forget to hit 'previous' under the bottom comic to see them all) and our mitosis GIFs!

On TpT

Answer Key to Mitosis recap.
This helps support our creating!
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Topic is part of our Unlectured Series!

We also have a YouTube Short video (under 60 seconds) called "Amoeba Sisters Mitosis Poem" and NEW Feb 2023: there is a TpT Easel based on that Short.
Mitosis vs Meiosis

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our mitosis vs. meiosis chromosome number (in humans) comparison illustration.

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Select handout and key: select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work! 
Monohybrid Crosses

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Monohybrid Crosses Recap - Amoeba Sisters PDF
File Size: 397 kb
File Type: pdf
Download File


Check out our monohybrid punnett square GIF!

On TpT

Answer Key to Monohybrid Crosses recap.
This helps support creating!
Multiple Alleles (focusing on ABO Blood Types)

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.
Free Video Resources
Multiple Alleles Recap - Amoeba Sisters PDF
File Size: 563 kb
File Type: pdf
Download File


Check out our illustration regarding blood types.

On TpT

Answer Key to Multiple Alleles.
This helps support our creating!
Muscle Tissue and Sliding Filament Model
Free Video
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On TpT
Select handout and key: select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work! 
Mutations

Free Video

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This video has been updated!
[Prefer the old video? It will remain up!]

Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

NOTE: We don't always update old handouts when we update a video, but we decided to update this handout! It is very similar but with updated drawings and a few extra questions. Updated handout is below. Old handout remains available underneath the new one.
UPDATED Mutations Recap by Amoeba Sisters- Amoeba Sisters PDF
File Size: 469 kb
File Type: pdf
Download File

prefer OLd handout? Click to expand.
OLD Mutations Recap - Amoeba Sisters PDF
File Size: 602 kb
File Type: pdf
Download File


Check out our mutation graphics and GIFs!

On TpT

Answer Key to Mutations recap.
Note: We have updated this to include both keys---one to the original (old) student recap and one to the new (updated) student recap.
Natural Selection

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Natural Selection Recap- Amoeba Sisters PDF
File Size: 464 kb
File Type: pdf
Download File

On TpT

Answer Key to Natural Selection recap. 
This helps support our creating!
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Topic is part of our Unlectured Series!
Nature of Science

Free Video

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P.S. The above video is a intro to science video. Science helps develop scientific theories and laws. But we know many students have the misconception that "scientific theories turn into laws with enough evidence" or that a scientific theory is "just a theory." We have a separate video that can help with these misconceptions- scroll down under the topic "theories."

Free Video Resources

Nature of Science Recap- Amoeba Sisters PDF
File Size: 384 kb
File Type: pdf
Download File


Check out our Nature of Science related illustrations, including this infocomic mentioning experimental design vocab.

On TpT

Answer Key to Nature of Science recap.
This helps support our creating!

On Redbubble Website

We license some of our art in our Redbubble store. By request, we made a poster version on Redbubble of our casual vs. scientific use of the word "theory" comic.
Nervous System
FREE VIDEO
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Free Video Resources
Nervous System Recap - Amoeba Sisters PDF
File Size: 1004 kb
File Type: pdf
Download File

On TpT
Answer Key to Nervous System recap.
This helps support our creating!

Amoeba Sisters Terms of Use
Reminder: Terms of use prohibit publicly posting answer keys made from our handouts. This is an editing on our copyrighted work (and a disservice to teachers and students using them). ​
Picture
Scrolling alphabetically but not sure if you're looking for the same topic name we are using? Curious about standards our videos can help support?
Check out our playlist page for assistance!
Osmosis

Free Video

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​Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Osmosis Recap - Amoeba Sisters PDF
File Size: 568 kb
File Type: pdf
Download File

Note: You can use the free student handout with either the new video  (recommended) or our old osmosis video (which will remain up).
Check out our osmosis and diffusion comics here (click previous at bottom of last comic to see more) and view our osmosis GIF!

On TpT

Answer Key to Osmosis recap.
This helps support our creating!
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Topic is part of our Unlectured Series!
PCR 

Free Video

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Free Video Resource

Check out our PCR GIF (you'll find it about mid-way on our GIF page) next to the gel electrophoresis GIF!
On TpT
Select topic recap and key.  Select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Pedigrees

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Pedigree Recap - Amoeba Sisters PDF
File Size: 681 kb
File Type: pdf
Download File

Check out our pedigree comic!

On TpT

Answer Key to Pedigrees.
This helps support our creating!
Photosynthesis

Free Video

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Note: This is the updated video, but the old video will remain up if you prefer it! Our old handout can be used with this new updated video or old video.

Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Photosynthesis & Cellular Respiration Recap - Amoeba Sisters PDF
File Size: 517 kb
File Type: pdf
Download File

*Additional Note: This comparison handout covers two different video clips: cellular respiration and photosynthesis.
​Check out our cellular respiration vs. photosynthesis GIF as well as comics.

On TpT

Answer Key to Photosynthesis recap. 
This helps support our creating!
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Topic is part of our Unlectured Series!
Plant Reproduction (in Angiosperms)

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Plant Reproduction Angiosperms Recap- Amoeba Sisters PDF
File Size: 782 kb
File Type: pdf
Download File


Check out our angiosperm reproduction GIF and our plant comics! Don't forget to hit "previous" under the last displayed comic to see more.

On TpT

Answer Key to Plant Reproduction Angiosperms recap.
This supports our creating!

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Topic is part of our Unlectured Series!
Plant Structure and Adaptations

Free Video

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This video was recently updated! Still prefer the old (original) video? It's here.
Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

NEW 2023: Check out our free TpT Easel!

Check out our many plant comics! Don't forget to hit "previous" under the last displayed comic to see more.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Prokaryotic vs. Eukaryotic Cells

Free Video

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Note: These concepts are already covered in our "Cells" video and resources- but this shorter video isolates prokaryotic vs. eukaryotic cells.
​Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Prokaryotic vs. Eukaryotic Cells Recap- Amoeba Sisters PDF
File Size: 370 kb
File Type: pdf
Download File


We have many cell comics, but this is one of our favorites on this topic. Also, check out our prokaryotic vs eukaryotic cell GIF!
I'm looking for your old video called "Prokaryotes and Eukaryotes" and old handout?
Click here to access our old "Prokaryotes and Eukaryotes" video! It will remain up. Below is our old handout as well. Note: As mentioned in product description, the offered key on TpT goes to the new handout. There is not an active key to this old handout.
OLD Prokaryote/ Eukaryote Recap - Amoeba Sisters PDF
File Size: 437 kb
File Type: pdf
Download File

On TpT

Answer Key to Prokaryotic vs. Eukaryotic Cells.
This supports our creating!
Properties of Water

Free Video

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Free Video Resources



Check out our related comics including "water the polar molecule" and "phase change."

Note: We have not created a free handout on this topic
, but we offer a resource for purchase on TpT.

​​​
​

On TpT

Select topic recap and key: select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys).
Picture
Topic is part of our Unlectured Series!
Protein Structure and Folding

Free Video

Picture

Free Video Resource


Check out our protein structure GIF!

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Protein Synthesis

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.
P.S. Did you know we made a short video on how to read a codon chart? To find it, look under the topic on this page "Codon Charts."  :)

Free Video Resources

NOTE: We don't always update old handouts when we update a video, but we decided to update this handout! It is very similar but with updated drawings and a few extra questions. Updated handout is below, and just like the old handout, it focuses on two videos. The front (1st page) focuses on the DNA vs. RNA video and the back (2nd page) focuses on the protein synthesis video.
UPDATED DNA vs RNA and Protein Synthesis Recap - Amoeba Sisters PDF
File Size: 445 kb
File Type: pdf
Download File

prefer old handout? Click to expand.
OLD DNA vs. RNA and Protein Synthesis Recap - Amoeba Sisters PDF
File Size: 647 kb
File Type: pdf
Download File

*Note: Handout covers 2 separate videos. Front (1st page) focuses on DNA vs. RNA video  & back (2nd page) on protein synthesis video.
Also, the old protein synthesis video still exists if preferred. ​
Check out our protein synthesis comics and GIFs!

On TpT

Answer Key to DNA vs. RNA and Protein Synthesis recap.
Note: We have updated this to include both keys---one to the original (old) student recap and one to the new (updated) student recap.
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Topic is part of our Unlectured Series!
Protists and Fungi

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Protists and Fungi Recap- Amoeba Sisters PDF
File Size: 371 kb
File Type: pdf
Download File

On TpT

Answer key to Protists and Fungi recap.
This helps support our creating!
Respiratory System
Free Video
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On TpT
For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
REVIEW

Free Videos

We have 2 review videos!

1. Stroll Through the Playlist (a Biology review) video covers many general biology concepts.
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Standards this can support?
​Texas teachers, we list TEKS that can be supported here.
2. Mega Genetics Review covers how to do many different types of Punnett square problems.
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Standards this can support?
​Texas teachers, we list TEKS that can be supported here.

Free Related Resources

Some other free review items we have created in addition to the free videos:

In 2017, we made a discussion topic review with some of our GIFs!

In 2018, we made a helpful study tips video here.
​

In 2020, we made a "Describe the Biology with GIFs" slide show!

On TpT

Stroll Through the Playlist Video Companion on TPT here! This companion handout closely follows our "Stroll Through the Playlist (a Biology Review)" video.

Mega Genetics Review Video Companion on TPT here! This companion handout follows our "Mega Genetics Review" video.

See our new TPT Biology Vocabulary Easels (set 1-5)! 

On Redbubble Website

We license some of our art for our Redbubble store, and we have our study tips poster here.

Amoeba Sisters Terms of Use
Reminder: Terms of use prohibit publicly posting answer keys made from our handouts. This is an editing on our copyrighted work (and a disservice to teachers and students using them). ​
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[General Lab] Safety

Free Video

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This can correlate with reviewing safety procedures prior to lab.

Free Video Resources

Lab Safety Recap- Amoeba Sisters PDF
File Size: 395 kb
File Type: pdf
Download File

Check out our lab safety reminders comic here
On TpT
Answer Key to Lab Safety recap.
Note: This one didn't have a key available until late January 2023; we made it due to popular demand!
Our Redbubble Website:
​
We license some of our art for our Redbubble store. See our lab safety posters here.
Sex-Linked Traits

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Sex-Linked Traits Recap- Amoeba Sisters PDF
File Size: 689 kb
File Type: pdf
Download File


We also have a graphic explaining how a sex-linked recessive disorder can be inherited.

On TpT

Answer Key to Sex-Linked Traits recap.
This helps support our creating!
Sodium-Potassium Pump

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Check out our sodium potassium GIF!
The video mentions how the sodium and potassium electrochemical gradients (which the sodium potassium pump helps maintain) can be used by other proteins. Check out our Protein Transporters graphic!

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
[How Cells Become] Specialized 

Free Video

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​Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource


We have a lot of cell comics, but this is one of our favorites involving stem cells.

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

For this video, we offer our annotated video script TEMPLATE. Our template provides space for students to annotate, sketch their learning, identify vocab, and ask their own questions.
Specialized Cells

Free Video

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​Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

 We have a lot of cell comics, but this is one of our favorites involving cell specialization as well as this infocomic showing specialized cells within the cross section of a leaf.

Note: We have not created a free handout on this topic, but we offer a resource for purchase on TpT.

On TpT

Select topic recap and key: Select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Speciation

Free Video

Picture
Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resource

Check out our reproductive isolation comics!

Note: We have not created a free handout on this topic, but we offer a paid one on TpT.

On TpT

Select topic recap and key: Select recap handouts are styled just like our regular free recap handouts, but they tend to cover more detailed/less standard topics. For example, water properties, the endosymbiotic theory, and non-Mendelian inheritance are topics that have select handouts (with accompanying keys). This supports our work!
Theories and Laws

Free Video

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Free Related Resource

While we don't have any handouts on this topic at this time, check out our graphic here showing some differences between the casual, everyday use of the word theory vs. the scientific use.

On Redbubble Website

We license some of our art on Redbubble store. We have the above graphic turned into a poster size here.
Vaccines
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The video details for this video include links for further reading suggestions from several peer-reviewed sources which can help address the many myths that exist about vaccines.

Free Related Resource

While we don't have any handouts on this topic at this time, check out our related illustration!
Viruses

Free Video

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Standards this can support? Visit here.
​Texas teachers, we list TEKS that can be supported here.

Free Video Resources

Viruses Recap- Amoeba Sisters PDF
File Size: 436 kb
File Type: pdf
Download File


Check out our many virus comics (don't forget to click "previous" at the bottom left of the last comic to see them all!) and our virus replication GIF!
didn't you have an old video and handout for this topic?
Yes, here is the link to our old video. The old handout is below. We do not offer a key for this old handout.
OLD Virus Recap - Amoeba Sisters
File Size: 679 kb
File Type: pdf
Download File

On TpT

Answer Key to Viruses recap.
This helps support our creating!
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Topic is part of our Unlectured Series!

Scrolling alphabetically but not sure if you're looking for the same topic name we are using? Curious about standards our videos can help support?
Check out our playlist page for assistance!


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P.S. Click above graphic to see our blog post on this topic. While these "absolute statements" do not seem to involve edu videos on YouTube (yet), we believe the effectiveness of edu videos ALSO depends on how they are used so we made a video with some suggestions!
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