A ball of glass will bounce higher than a ball made of rubber.
73
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
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The earth is approx. 6,588,000,000,000,000,000 tons.
175
One ragweed plant can release as many as one billion grains of pollen!
51
Nearly 50% of the world's scientists are assigned to military projects.
71
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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