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Activity for Robin‭

Type On... Excerpt Status Date
Answer A: Ways to desalinate water when "lost at sea"?
You can place an empty cup in the middle of a lightly filled bucket of sea water. You then place a plastic bag over the bucket, with a stone in the middle so it has a dip in it over the cup. The sea water evaporates, reforms on the plastic bag (without any salt in it) and then drips into the cup. S...
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about 6 years ago