Learn more: Science Buddies/Newspaper Dome 7. This experiment requires nothing more than newspaper and masking tape! Construct a geodesic domeīudding engineers will love designing, building, and testing the strength of the fascinating geodesic dome. Learn more: Steve Spangler Science/Can Crusher 6. Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure! They’ll need some supervision with the fire, so try this out on the playground for extra safety. This easy experiment is a cool way to show kids how heat affects air molecules, making hot air rise. When you’re done, you can enjoy a sweet treat! If you’re learning about how genetic traits are passed along from parent to child, try this jellybean demo. The only special supply you need is a plug-in light socket. When you build your own grow box, there are lots of seventh grade science fair projects you can do with it. Experiment to see how far or fast you can make the car go. Engineer a balloon-powered car using basic materials from around the house (even the wheels are bottle caps!).
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