- The water in the Dead Sea is so salty that it's easier to float than sink.
- The winter of 1932 was so cold that Niagara Falls froze over completely.
- There are more insects in the world than all other animals combined.
- There is 200 times more gold in the world's oceans than has been mined.
- There is no sound in space.
- To crack a whip the tip must be travelling faster than the speed of sound.
- Trees do not have life expectancies (most can grow indefinitely).
- Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
- When hydrogen burns in the air water is formed.
- When lightning strikes it can reach up to 30,000 degrees Celsius (54,000 degrees Fahrenheit).
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