Set of 4 single AA battery holders that snap together to form either parallel or series connection.
By using these 4 battery holders you can get 1.5V, 3V, 4.5V or 6V (series connection) or get 4x current at 1.5V (parallel connection).
Great, versatile AA battery holders for any electricity project.
This classic device is used to demonstrate the conservation of mechanical energy.
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!
Build your own 10 inch kaleidoscope with this great kit!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Build a hand that realistically moves its fingers using shape memory allow technology!
Learn all about Newton’s Laws and Energy conservation.