What The Heck Is Sand?
01:08

What The Heck Is Sand?

Key Facts In This Video

  • 1

    Sand mostly consists of broken-down rocks. (0:10)

  • 2

    A rock particle has to be a minimum of .05 mm to be considered sand. (0:27)

  • 3

    Hawaii's white beaches owe their appearance to parrotfish poop. (0:43)

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