How to separate salt from water

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While we were learning about evaporation, we found some experiment ideas about separating salt from water.

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What We Used

• 1 tbsp Salt and 1/4 cup of Water (Mix them until the salt dissolved completely)
• Gravels (Optional)
• Aluminum baking tray (Any tray is OK but avoid white color. It will be hard to see the salt. Cookie baking sheet might work as well!)

What We Did

Put about one tablespoon of salt into 1/4 cup of water, and mix them until the salt is completely dissolved. Put some saltwater mixture into the aluminum baking pan and leave it for a couple of days. (Optional: We added some gravels to make it like the shore.)

We left the pan close to the heating vent to make the saltwater evaporated faster. Just one day later, it almost dried. We left them a few more days.

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Resources for Learning Topics

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Videos

This video shows the evaporation of salt with the boiling process.

This video is explaining what water evaporation is with a fun experiment.

Websites

How to Separate Salt from Water (Education.com)

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Happy learning!