Iron weighs more after it rusts.
16
In zero gravity, a candle's flame is round and blue.
16
Sound at the right vibration can bore holes through a solid object.
134
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
A cubic yard of air weighs about 2 pounds at sea level.
31
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound travels about 4 times faster in water than in air.
408
The sun is 330,330 times larger than the earth.
75