Balsa wood is classified as a hard wood!
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Your brain is 80% water.
525
Scientists aren't sure what color dinosaurs were.
312
4.5 pounds of sunlight strike the Earth each day.
27
The force of a suction cup is calculated using F=AP.
15
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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