Watch Now You Know: Where does the sand on the beach come from? - Streaming Online | iwonder (Free Trial)
Now You Know: Where does the sand on the beach come from?
Now You Know: Where does the sand on the beach come from?
Now You Know: Where does the sand on the beach come from?
1 min • Nature & Environment, Health & Science • 2018

It's great for building castles and sculptures. But where does the sand come from?

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