The smell of freshly cut grass is actually a plant distress call.
31
A ball of glass will bounce higher than a ball made of rubber.
73
Pumice is the only rock that floats on water.
14
The bark of an older redwood tree is fireproof.
65
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18