Students will be able to develop and explain a particle-level model to describe evaporation and condensation in the context of the water cycle. The water cycle depends on the processes of evaporation ...

So, I've heard a rumour that you can change liquids to gases, and back again. Right! Go on then. Let's see. Nice shower Square? Whoa! Cheeky. When water is heated up, it changes state from a ...

When a cup filled with cold water is exposed to air, the water in the air condenses onto the side of the cup. If the cup of cold water is not exposed to air, no condensation will form. The fast-moving ...