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.
The burdei dates back as far as 6000 years and it’s a type of half-dugout shelter somewhat between a sod house and a log cabin, usually with a floor that’s 1 – meters under ground level. Not realy a tree house but still cool