For every gallon of sea water, you get more than a quarter pound of salt.
45
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Scientists aren't sure what color dinosaurs were.
312
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Sound at the right vibration can bore holes through a solid object.
134
Liquid TIDE laundry detergent glows under a blacklight.
96