Sound travels fifteen times faster through steel than through air.
134
In zero gravity, a candle's flame is round and blue.
16
Most dust particles in your house come from dead skin.
48
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Your brain is 80% water.
525
Scientists aren't sure what color dinosaurs were.
312
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Indoor pollution is 10 times more toxic than outdoor pollution.
62