The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
No matter how cold it gets, gasoline will not freeze.
107
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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
Out of all the senses, smell is most closely linked to memory.
146
A ball of glass will bounce higher than a ball made of rubber.
73