Third Grade Projects, Lessons, Activities (665 results)

Earthworms are important for the soil and fun to study. In this science project, you will find where earthworms like to stay when food is around. Will they gather around the food, take food with them in their tunnels, or not be attracted to the food at all? You will fill four pots with dirt, add food and worms, and track their activity over one week to find out! Read more

Students learn the difference between global, prevailing, and local winds. They make wind vanes out of paper, straws, and soda bottles and use them to measure wind direction over time. They analyze their data to draw conclusions about the local prevailing winds.Engineering Connection Understanding the patterns and behavior of global and localized winds enables engineers to design technologies that protect us from wind and exploit the energy of wind. Engineers design… Read more

Watch out! Eddies and vortexes are powerful regions of air and water flow that you have to watch out for in some surprising places. Try out this science fair project to discover why they can be dangerous, as well as where and how to find them. Read more

"Play-Doh" © 2006 Dennis Brekke Do you know the relative sizes of the planets in our solar system? Put yourself to the test with some Play-doh. Size comparisons between planets can be surprisingly tricky. This activity allows students to model, in three dimensions, the relative sizes of the planets. Read more

Do you know what is living in your backyard? How about at the playground, or in your compost pile? Nematodes, also called roundworms, are the most abundant animal on Earth and they might be living in any of these places. In this science project you'll isolate nematodes from several soil samples to discover the best nematode habitats. Read more