Discovery Science Step 1: Materials – Materials and Change
Making a Water Fountain
Objectives: Explore the effects of heating liquids
Skills: Experimenting, Observing
In this experiment, the children learned that air expands as it is heated. When the half-filled bottle of cold water (with added red dye) was put into hot water, the air inside the bottle expanded and pushed the coloured water into the straw and out the top like a fountain!