Cold water weighs more than hot water.
93
Out of all the senses, smell is most closely linked to memory.
146
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
The average home creates more pollution than does the average car.
33
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A cesium atom in an atomic clock beats over nine billion times a second.
43