Plastic bags again. The results and conclusions.

Like all good scientists we observed our experiment for some time. Some of our hypotheses were wrong. The water did not all evaporate, the water did not change colour, the bag did not burst.

In fact the sun did cause the water to heat up. The water evaporated and condensed on the sides of the bag (because the air was cooler) and then when you tapped the bag, the tiny drops of water all ran together falling bigger drops and then ran back down the sides of the bag into the water at the bottom.

Oh my gosh .... the water cycle in action in a plastic bag!

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