Apples float but pears sink.
There are more stars in the universe than grains of sand on all the beaches on Earth. That’s at least a billion trillion!
More about space ❯
An blue whale's heart is the size of a small car.
More about Animals ❯
Earth has been recycling water for over 4 billion years! That means we drink the same water as woolly mammoths, the first humans and King Tut.
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