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Real Scientists
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Elizabeth Arredondo

Mineralogist Elizabeth Arredondo loves adventure! When she's not skydiving, she's out hunting for colorful gems and minerals. In her work at Caltech, she studies how much water is hidden in minerals, like garnets. By examining these red and green gems, she hopes to find clues about how the Earth formed.

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whiz quiz
How large is the average meteor?

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