Cold water weighs more than hot water.
93
Hot water can freeze faster than cold water.
181
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Billions of neutrinos pass unnoticed through your body every second.
6
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The sun is 330,330 times larger than the earth.
75
Iron weighs more after it rusts.
16