Photograph of a lake surrounded by trees.

Image source: By Doris Antony CC BY 2.0, via Wikimedia Commons

You want to learn more about what's in the water in the lake you and your family swim in on summer weekends. In order to do this, you scoop up a jar full of the lake water mixture to take home and separate into its individual components. Which step will be best for removing substances suspended in the mixture?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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