- Minus 40C is exactly the same temperature as minus 40F.
- More than 1,000,000 Earths could fit inside the Sun.
- Natural gas has no smell (the odor is artificially added so that people are able to identify leaks).
- Over 500 meteorites hit the Earth each year.
- Petrol has no specific freezing point (it can freezes at any temperature between -82 and -115C (-180 and -240F).
- Rain contains vitamin B12.
- Rainbows can only be seen in the morning or late afternoon (the sun needs to be less than 40 above the horizon).
- Raindrops are not tear shaped (they more resemble the shape of a tiny hamburger bun).
- Red light has the highest wavelength.
- Room temperature is defined as between 20 to 25C (68 to 77F).
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