High-quality weight with a hook fitted through the center allow you to hook weights together in tandem or use them one at a time.
Pass-through hooks are included on both sides of the weight!
Experiment with engines powered by air pressure and water, and build models to race your friends!
Small booklet that gets you started in the wonderful world of rocks, minerals and crystals.
Watch this laser pointer emit a cool purple beam!
Defy gravity with this cool balancing eagle!
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
Build 10 different models which explore the science of air pressure through fun activities!