- The smallest ten prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.
- Instant coffee was invented in 1901.
- Zoophobia is the fear of animals.
- A group of frogs is called an army.
- The golden ratio of approximately 1.618 between two quantities such as lengths often appears in nature (tree branching, uncurling ferns, pine cone arrangements etc) and has been used throughout history to create aesthetically pleasing designs and art works such as Leonardo da Vinci's Mona Lisa.
- Coconuts kill over 150 people each year (more than sharks).
- The atomic symbol for iron is Fe (the original name for iron was Ferric).
- When water freezes it expans by 9%.
- Silly String was originally designed to be a spray on cast for broken bones.
- A flea can jump 350 times its body length.
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