Your third grade science class can explore how ice and salt affect the temperature, a simple but effective lesson on heat transfer and freezing points. This simple experiment requires only water, ice, salt, and a thermometer. Experiment with ice, salt, and water temperature Learn more: Frugal Fun for Boys and Girls 18. Construct a marshmallow catapultįling some sweet treats in the name of science! All you need is an old tissue box, pencils, rubber bands, and a few other supplies to learn about trajectory, air resistance, gravity, and more. Kids will love building their own whistles from straws and a glass of water. Learn about the science of sound with this easy experiment. Then create a DIY star projector to explore the concept hands-on. Use the video lesson in the link below to teach 3rd grade science students why stars are only visible at night. Learn more: Raising Lifelong Learners 15. Encourage them to plan, draw blueprints, and test their creations, using the scientific method. Build a better umbrellaĬhallenge students to engineer the best possible umbrella from various household supplies. Try different soaps, mixing up the ratios to make the strongest bubble possible. Have your third grade science students put on gloves and watch the bubbles bounce! Then encourage them to experiment with their own bubble solution. Kids learn about chemical reactions as they use the power of the sun to create unique works of art. You’ll need special sunprint paper for this project, but it’s inexpensive and easy to find. ( Find more fun ways to use pool noodles in the classroom here.) Experiment with angles, force, and surface materials to find the fastest way to get the marble to the bottom. Run marble races with pool noodlesĬrack open a pool noodle or two and create your own marble racetracks. Find the most waterproof roofĬalling all future engineers! Build a house from LEGO, then experiment to see what type of roof prevents water from leaking inside. Then glue some coins to the back and have your students try to find its center of gravity!
Print out, cut, and color this free paper robot. In this 3rd grade science project, learn about supersaturated solutions by crystallizing some colorful fall leaves. Crystallize some pretty fall leavesĮvery kid loves making crystals.
Learn more: Steve Spangler Science/Disappearing Color Wheel 8. Then thread a string through the middle and make it spin.
Spin a disappearing color wheelĬolor a paper disk with the six primary and secondary colors. ( Love Play-Doh? Get more learning ideas here.) Learn about the layers of the Earth by building them out of Play-Doh, then students can take a core sample with a straw. Use this simple experiment to discover more about gravity and the effects of magnets on metal objects. Magnets are always a hit in the classroom. Defy gravity with magnets and paper clips Try experimenting with saltwater to see how the density changes things. Use a balloon to make an iceberg, then float it in a dish of water to learn how much you can see above and below the waterline.