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.
Watch this laser pointer emit a cool purple beam!
Find the hidden crystals when you open your own geodes from this fun set.
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
This is a great clean heat demonstration model for the classroom setting!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!