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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.