- Your mouth produces 1 litre of saliva a day.
- Strawberries are actually members of the rose family.
- There are more stars in the sky than grains of sand on earth.
- Women's hearts typically beat faster than men's hearts.
- Gunpowder is formed by mixing charcoal, saltpetre and sulphur.
- Gorillas burp when they are happy.
- A spider's silk is stronger than steel.
- Goldfish can see both infrared and ultraviolet light.
- As a world commodity coffee is second only to oil.
- Birds cannot live in space because they need gravity to be able to swallow.
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