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Heavy Backpacks
Heavy Backpacks
http: //need.org/needpdf/IntHeavyBackpacks.pdf -
Changing Colors
Changing Colors
http: //need.org/needpdf/PriSunPowertoChangeCol... -
Solar Hot Dog Cooker
Instructions on building a solar-powered hotdog cooker..
http: //energyquest.ca.gov/projects/solardogs.h... -
Energy From Garbage
Energy From Garbage
http: //need.org/needpdf/IntGarbageEnergy.pdf -
Open & Short Circuits
Find out how to make an open and a short circuit.
http: //energyquest.ca.gov/projects/open-short-... -
Measuring the Wind
A simple gauge to measure how strong the wind is blowing.
http: //energyquest.ca.gov/projects/windmeasure... -
Water Maker
Water Maker
http: //need.org/needpdf/PriWaterMaker.pdf