The diagram below shows how to obtain water outdoors.
Summarize the information by selecting and reporting the main features.

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The picture shows a simple approach to get water outdoors.
The materials needed for this set are all easy to get. Firstly, prepare two glasses, one of which is much larger than the other. Secondly, find some green plants as the resource of water. Thirdly, set the green plants and put the small glass into the larger glass, then cover the opening of the larger glass with « big plane. After that, place a piece of plastic film over the Plane and Put some stones on top of the film to fix it. Finally, put the whole set in the sun. After a while, vapor produced by the green plants reaches the plastic film and changes to drops. The water drops finally fill in the smaller glass.

When we are short of water in the forest or field, this simple set may be the easiest way for us to get rid of thirst

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