In zero gravity, a candle's flame is round and blue.
16
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Sound travels about 4 times faster in water than in air.
408
Cold water weighs more than hot water.
93
The bark of an older redwood tree is fireproof.
65
Out of all the senses, smell is most closely linked to memory.
146
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304