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
This is the fourth game in the series of popular duck training games. Develop your duck's skills by training it to fly or swim. Compete in racing tournaments with other ducks. Choose between training only one duck or a team of ducks.