Chewing Gum + AA Battery = Fire Starter - Tear a Foil-Backed Wrapper Into an Hourglass Shape. Touch the Foil to the Positive and Negative Battery Terminals. The Electrical Current will Cause the Wrapper to Ignite and Light a Candle or Tinder.
Rain Drops by Evan Gant. All this concept needs are plastic bottles, a structure, and gutters, which catch rainwater. The bottles are a cheaper way of storing water and a great way to reuse those soda bottles. They can be cleaned easily and maintained ea