This switch will close the connection when you place a magnet next to it. Great for science fair projects involving the sensing of magnetic fields. Great for hobby electronics.
Learn Chemistry While Creating Sweet Treats
Ever wonder how to survive in the wilderness? These cards can help!
Build a model green house and 9 other green energy-related devices with this great kit!
This glass Erlenmeyer mug makes an excellent gift!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Build 20 different solar powered models with unique building pieces, controlled by an RC handset!