Henry Cavendish
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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Game Spotlight
Learn division facts and how to divide by 9 in this online flashcard game. You have 2 minutes to solve as many division problems as you can. Use the keyboard or touchscreen to play and become a division table expert.