A length of durable, non-stretch cotton measuring 82 feet (25 meters) long at 1/16 of an inch thick. The string is specially designed for use with any of our pulleys, allowing you to perform experiments demonstrating basic laws of motion and simple machines. Perfect for the physics classroom, and great for use with a variety of science fair experiments.
Use this awesome prism to teach about optics and light in the classroom setting!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
This classic desk toy will keep you amused! Large, 7 inch tall version.
A massive mounted set of 100 rocks and minerals found in the US,
Easily assemble a working alarm motion detector!
This project book and sample kit introduces you to shape-memory alloy technology!