Are you looking for science activities to do with your 3rd graders? No sweat. We have you covered. Check out our list of 20 science projects and experiments that you can try with your 3rd graders this month.

1. Hand-Eye Coordination and Age | All-Science-Fair-Projects.com – Grades 2-5, Use a stopwatch and ping-pong ball to find out how hand-eye coordination changes as children get older.
2. What Do Yeast Eat…and How Can You Tell? | Education.com – Grades 2-5, The objective of this project is to examine which foods yeast cells eat.
3. How Do Antacids Work? | Biochemistry Discovery Lab – Grades 3-6, Simulate out how antacids work to treat heartburn by using fake stomach enzymes.
4. Mice & Music | Hubpages.com – Grades 3-6, Find out if music affects the performance of mice in a maze.
5. A Magnetic Primer Designer | Sciencebuddies.org – Grades 3-6 Biology project that utilizes magnets to mimic the process that scientists use to replicate DNA, using the polymerase chain reaction.
6. Growing Bacteria in Petri Dishes | Stevespanglerscience.com – Grades 3-6 biology In this science fair project, you must find samples of bacteria from an assortment of surfaces to find the surfaces that are the dirtiest.
7. How Does Color Affect Eyesight? | Education.com – Grades 1-5, Find out which colors are easier and more challenging to read at a distance. This super simple project requires volunteers and color charts you can print from the web.
8. How Many Letters? | ScienceBuddies.org – Grades 1-4, How much memory does a computer use to “remember” a series of letters? Find out how much memory a computer uses to remember 1000 letters.
9. Jumping For Geodes: Can You Tell the Inside from the Outside? | ScienceBuddies.org Grades 1-4, Can you tell what’s inside a geode from looking at the outside? Learn more out these unique rocks and crack some open to discover the surprises inside.
10. How Water Beats Rock | Education.com – Grades 1-5, Discover how water is more potent than rocks.  Experiment with ways that water can break the stone.
11. Soil Type and Liquefaction | All-Science-Fair-Projects.com – Grades 1-5, Experiment with sand, clay, and loam and find out which type of soil dissolves most easily.
12. Effects of Temperature and Humidity on Static Charges | Education.com – Grades 1-5, Use balloons, a rubber ball, and a scarf to investigate why those socks stick together when you take them out of the dryer and how conditions in the air affect static electricity.
13. Condensation and the Water Cycle | Easy-Science-Fair-Projects.net – Grades 2-4, Gather up some jars, bowls, and ice water to determine how the amount of ice affects condensation.
14. Ready, Set, Search! Race to the Right Answer | ScienceBuddies.org – Grades 2-5, Find out how Internet search engines work and how you can get different results depending on the type of information you request.
15. Paper Airplane Science | Easy-Science-Fair-Projects.net – Grades 2-5, Put your paper airplane making and flying skills to the test. Design and fly a variety of different planes and determine which design flies the farthest.
16. Mag-nificent Breakfast Cereal – Grades 2-5, Use a blender and a magnet to find out how much iron is in different kinds of breakfast cereal.
17. The Big Dig | Sciencebuddies.org – Grades 2-5, Find out which materials are biodegradable, and which ones are not. How can you use this information to help the environment?
18. Weather-Related Science Projects | Hubpages.com – Grades 2-5, Learn more about the weather and other aspects of meteorology by using instruments you build. Make a barometer, hygrometer, anemometer… even lightning!
19. Hero’s Engine and Newton’s Third Law | Education.com – Grades 2-5, Build an aeolipile(Hero’s Engine) to explore Isaac Newton’s Third Law – for every action, there is an equal and opposite reaction.  Can you predict the movement of the Hero’s Engine?
20. Rocky Secrets: Where Does Oil Hide? | ScienceBuddies.org -Grades 2-5, Can you get petroleum oil from a stone? Find out which kinds of rocks can soak up and store the most fat. Learn how petroleum geologists and engineers use this information to find the best places to get oil from the earth.