One third of the electricity produced on earth is used to power electric light bulbs!
75
A ball of glass will bounce higher than a ball made of rubber.
73
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
No matter how cold it gets, gasoline will not freeze.
107
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
Aluminum used to be more valuable than gold!
84
Diamonds can be shattered with a hammer.
-104
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199