A ball of glass will bounce higher than a ball made of rubber.
73
The smell of freshly cut grass is actually a plant distress call.
31
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Most dust particles in your house come from dead skin.
48
4.5 pounds of sunlight strike the Earth each day.
27
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The bark of an older redwood tree is fireproof.
65