A Moment of Science
How big is a really big crystal? Learn more on this Moment of Science.
Is Hawaii due for a new volcano? Learn about Hawaii's growing island on this Moment of Science.
In the desert, the absence of water means little or no chemical weathering can take place. Instead, erosion, frost, sedimentation, and the huge temperature fluctuations between day and night break down the rocky surface into sand or gravel.
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