Pure water (H2O) does not conduct electricity on its own.
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pumice is the only rock that floats on water.
14
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A ball of glass will bounce higher than a ball made of rubber.
73
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