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When you observe rocks in a stream or river, you often find they share common characteristics. The fast moving water carries rocks downstream. As the water slows, the rocks begin to stop moving. Typically the largest rocks settle first, while the smaller rocks continue moving until the water slows down even more.

 

Procedure:

Below are pictures of six different-sized particles. Imagine that you put them in a large container filled with water and then shook the container vigorously. The particles are labeled A, B, C, D, E, and F. Look closely at each and determine the order you would arrange them, based on how they would settle ... from bottom to top.

After completing the above activity, drag your mouse to check your answer below.

Review science safety rules here.

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Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 7th grade science core.


Updated October 24, 2008 by: Glen Westbroek

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