electricity
Online Electronic Circuit Simulator
This free online tool requires java. It will let you see how voltage and current change in a range of circuits as you alter the components.
Homeschool Electricity and Magnetism
Examine atoms and matter and their relationship to electricity. Build circuits and electromagnets and construct electrical inventions of your own design.
When: Four Wednesdays, Oct 21, 28, Nov 4 and 11; 9:30 a.m.-12:30 p.m.
Ages: 10 to 13
Fee: $112, $100 mbr
Registration opens August 31, 2009
For more information or to register: http://www.smm.org/homeschool/
The Bakken Museum
Location
Toys from Trash
A huge collection of "toys" made from simple inexpensive materials often found around the house, demonstrating a wide range of mathematical and scientific concepts. Includes novel experiments and homemade musical instruments.