Teach cloud formation when there’s not a cloud in the sky! This apparatus duplicates atmospheric conditions during cloud formation. It consists of a special glass flask with a rubber hose connection, pinch clamp, and large, thick walled, rubber bulb. When the atmospheric pressure is lowered, smoke particles are introduced into the chamber, and a nucleus for the formation of water droplets is produced. By compressing and suddenly releasing the bulb, a dense cloud forms in the flask.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Discover how solar cells make electricity with this awesome kit!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
The Wimshurst Machine is a high quality static machine for student labs.
Make the coolest 3D pin art on your desk with this amazing desk toy.