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
Tonality is a sound-based memory game. The game works like classic memory puzzles except you are searching for pairs of tones instead of pictures. But watch out, the tones need to be exact, and there are many subtle differences between them! Players can choose between 4 boards - 3x3, 4x4, 5x5 and 6x6.
