Weight and Mass
Description: Two of the key elements of physics, an object's weight and mass determine how it's affected by gravity.
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
Play your way through each level by matching three or more of the same style donut to clear the screen before the timer runs out. There are different powerups that you can use to help you clear the screen if you get stuck.