- The word 'karate' means 'empty hand'.
- Wind doesn't make a sound until it blows against an object.
- Your normal body temperature is 37C (99F).
- DVDs are physically the same size as a CDs but can store 13 times more data.
- An egg contains every vitamin except vitamin C.
- The popsicle was invented in 1905 by an 11-year-old boy.
- Polar bears can smell a seal from 20 miles away.
- Red light has the highest wavelength.
- Beavers were once the size of bears.
- A duck has three eyelids.
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