Balsa wood is classified as a hard wood!
41
According to studies, men change their minds two to three times more often than women.
72
The sun is 330,330 times larger than the earth.
75
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
Pumice is the only rock that floats on water.
14
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The only letter not appearing on the Periodic Table is the letter "J".
180
Most dust particles in your house come from dead skin.
48