A convenient 10-pack of cloth measuring tape, perfect for sewing, crafting, science fair projects, or lab measurements of objects lacking linear edges. Each measures up to 60 inches (5 feet) or 150 cenimenters (1.5 meters). Keep some around the house for hobbies, projects, or garage work. Also essential for the science classroom
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
The large realistic model has removable organs that can be studied and set back into the correct position.
See the constellations visible in the Northern Hemisphere on this watch!
Learn how solar cells transform light into electrical energy with this great kit!
Build your own windmill generator kit by recycling a plastic bottle!
See the solar system in action!