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
Note: This video streams on an HTML5 player. It runs on Chrome, Firefox, Opera, Safari or Internet Explorer 9 or higher. It is also optimized for iOS devices, including iPad, iPod, and iPhone.
Game Spotlight
It's Earth Day. Mom is helping Hazel to understand the importance of protecting the earth's environment. We love planet Earth and it is our duty to protect it. Join Baby Hazel and her team to spread environmental awareness across the globe. First you will
