As teachers, we are always on a budget. Decorating classrooms can get pricey. When I first started teaching I was spending a fortune online and at teaching supply stores to buy science posters so my walls weren't so drab. Since then, I've been creating my own science posters that the library will print for me poster size and laminate. You can see some of my posters in the picture gallery below). It has saved me a bunch of money! I have posters in my store, covering topics such as the rock cycle, cells, scientific variables, and more. Check them out here!  You can buy the whole bundle and save!

I've also complied a list of other posters I have found online for free download:
1. Human Genome Poster- This is great to bring out during my genetics unit. Students can look up which genes and diseases are held on each chromosome.
2. Top 10 Reasons you should take Physics
3. Water Education Posters- many posters available on topics such as groundwater, watersheds, and water quality.
4. Scientific Method- Scholastic has created these posters on the scientific method
5. Earth at Night- Poster from NASA
6. Earth/Mars Comparison poster
7. Earthquakes and Seismology- from IRIS
8. March for Science- 6 free posters to celebrate women in science
9. Physics Central- Fun physics posters that can be purchased or downloaded for free
10. Climate Science Posters- These definitely have a political tone, but if you are teaching about climate change are available for free
11. Renewable Energy Posters- in developing countries
12. Big Telescopes- and why we need them
13. Periodic table for biology- Great for honors/AP students
14. Make a difference with careers in biology poster set
15. Not All Chemists Wear White Coats poster set
16. Periodic Table for Biologists
17. Teaching Tolerance- not science related, but oh so important!
18. Forces of Nature- Poster series of women in science
19. NSTA Infographics- More teacher based than student based, but still colorful and free
20. STEM Role Model Posters- These are 8 beautiful posters of women in STEM!
21. Forces of Nature Posters- from Perimeter Institute.
22. Solar System and Beyond- Poster set from NASA

Enjoy!

1. Battle of the Beaks- This lab is always a hit! Students get to simulate Darwin's finches by having different "beaks" (tweezers, clothespins, etc) and feeding on different foods. Check it out here FREE in my TpT store!

5. Speciation Video- When you talk about how all of today's species evolved from a common ancestor, naturally many questions will arise. How do new species form? I love how clearly this video explains the process of speciation.

6. Speciation Lab- This lab is simple to do and is a winner because it uses skittles! I created this lab because I couldn't find any activities that reinforced the types of isolation that lead to speciation. CLICK HERE to download it. 

If you feel like your students are ready to delve into hominid evolution, check out this blog post that includes some resources. 
Want to save this post for later? Click here to repin!