- Dinosaurs lived on Earth for over 165 million years before they became extinct.
- Dirty snow melts quicker than clean snow.
- Due to gravitational effects you weigh is slightly less when the moon is directly overhead.
- Each time you see a full moon you always see the same side.
- Earth is the only planet not named after a god.
- Every living thing on the Earth contains carbon.
- Every year the sun loses 360 million tons.
- Fire usually moves faster uphill than downhill.
- Gold never erodes.
- Halley's Comet passes the Earth every 76 years (the next time it will return will be 2062).
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