Wednesday, 18 March 2015

more science facts for kids

  • The noise that is thunder is created when the air around lightning gets rapidly heated and expands at a rate faster than the speed of sound.
  • Rather than putting on weight from eating celery you actually lose it, you burn more calories from the chewing than you put on from the food itself.
  • Sound travels 4 times faster in water than it does through air.
  • Cranberries can be tested for ripeness by bouncing them, if they are ripe they should have a bouncing quality.
  • Travelling at 80 kilometres per hour, a car uses half its fuel to overcome wind resistance.
  • The largest living structure on Earth is the Great Barrier Reef. Found in Australia, it is over 2000 kilometres long.
  • The QWERTY keyboard layout used on most computers was invented way back in the 1860's.
  • Some types of bamboo can grow nearly a metre a day!
  • Diamonds are the hardest known substance.
  • Light from the sun can reach a depth of 80 metres in the ocean.
  • When you crack a whip, it makes a loud noise because the tip is actually moving faster then the speed of sound!