Bigger than the original, award-winning Ball of Whacks, it has 192 rare earth magnets inside so it looks and feels hefty in your hand! The 36 magnetic design pieces include two entirely new pyramid-shaped elements. There are 24 Whack pieces, six Half-Whack pieces, and six flat Whack pieces. This complex structure presents a greater challenge in reconstructing the Ball shape. It also opens up far more hands-on creative options as you design your own shapes.
Includes 96-page Guidebook
With this kit, you can conduct 25 experiments to learn how an electric motor converts electricity into motion, and how an electric generator does just the opposite, converting motion into electricity.
Learn all about the science of light, optics and visual perception with this wonderful kit!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
This plant and animal cell model activity set is a must-have resource for the science classroom!
This hanging Galileo thermometer is a gorgeous way to display the temperature outdoors!
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!