Dr. Johnson’s Heat Engine is a cool demonstration model of a clean heat engine. Using Muscle Wires® technology, the model shows how a heat engine can operate without the use of motors, gasoline or electricity. It comes with a helpful instruction guide with science facts on shape memory alloys and an explanation of how clean heat works. Recommended for use as a science project or as a classroom demonstration model.
Learn how solar cells transform light into electrical energy with this great kit!
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 14 assorted solar robots, some of which can travel over water!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
With 23 hands-on experiments, you can investigate specific weather phenomena as well as the climate system in general.