An affordable, lightweight, plastic, 4-bladed propeller that can be attached to the end of a DC motor. Use it to propel small cars, boats, a fan, or even a wind generator! Great for use in tandem with a solar cell or a battery pack. Compatible with a wide variety of science fair projects.
Check out this amazing renewable energy science kit featuring the wonders of hydroelectric power!
Discover how solar cells make electricity with this awesome kit!
Explore the wonders of wind power with this amazing kit!
View the glory of space with this hi-tech telescope set!
Working model representing the sun, earth, and moon and their relationships.
Easily assemble a working alarm motion detector!
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