Water Cycle in the Garden

Evaporation off a wet path. Condensation on a cold bottle. Transpiration in a bag tied round a leaf. Precipitation, which in the tropics needs no arranging.

The bag on the leaf is the one that convinces them. Water appears inside it within an hour on a hot day and it came out of a plant, which most children find slightly unbelievable.

The page has the four stages, the bag method, and an observation frame. It also has the honest note that the bag needs a full sunny hour, so tie it before break and check after, or the class watches nothing happen and concludes the science is wrong.