How Are Pearls Formed?

Updated on Oct 2, 2012
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When you see a necklace with pearls, you might think it's just a normal piece of jewelry made in a factory. But, as you'll learn in this worksheet, pearls are actually made of stuff that oysters and clams use to make their shells! Check out this worksheet for all the info and try a quick math exercise too.

Fourth Grade Life Science Worksheets: How Are Pearls Formed?