Description: Henry Cavendish was the first scientist to test gravity in the laboratory. Thanks to the "Cavendish Experiment," we know how much Earth weighs!
Category: Janet's Planet
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It's the weekend and Baby Hazel is in a playful mood with her pets. To cheer them up, Baby Hazel has planned to throw a pet party. She also invited her friends and their pets to join in on all the fun. Hang out with them and enjoy all of the different act