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
Tangram puzzles date back hundreds of years. Use seven shapes in various combinations to build pictures. Drag the shapes and rotate them to complete the tangram. These virtual tangrams allow players to practice spatial rotation and explore relationships between shapes. Play free mode to use this game as a virtual tangram manipulative.
