- You have to eat 5kg (11lb) of potatoes to put on .5kg (1lb) of weight (a potato has no more calories than an apple).
- The atomic symbol for iron is Fe (the original name for iron was Ferric).
- A group of frogs is called an army.
- An iguana can stay under water for 28 minutes.
- In a deck of cards the king of hearts is the only king without a moustache.
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