- The hardest substance in the human body is enamel.
- The number 1 cause of blindness in the US is diabetes.
- African elephants only have 4 teeth.
- A 'googolplex' is the number 1 followed by a googol zeros, a number so ridiculously big that it can't be written because there literally isn't enough room in the entire universe to fit it in!.
- Different names for the number 0 include zero, nought, naught, nil, zilch and zip.
- 80% of the world's food crops are pollinated by insects.
- The Titanic was built in Belfast.
- The odds of being struck by lightning are 600,000 to 1.
- Wheat is the world's most widely grown plant.
- Blue flames are the hottest, reaching temps up to 3,000 degrees Celsius.
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