- The game of Tug-of-war was an Olympic sport from 1900-1920.
- Thin skinned lemons are the juiciest.
- A fire will burn faster moving uphill than downhill.
- Crocodiles continually grow new sets of teeth to replace old ones.
- Dinosaurs lived on Earth for over 165 million years before they became extinct.
- In zero gravity, a candle's flame may appear circular and blue.
- The Earth weighs 6,588,000,000,000,000,000 tons.
- the word typewriter is the longest word that can be typed using only the top row of a keyboard.
- Golf was the first sport to be played on the moon.
- Cucumbers are 96% water.
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