Formative Assessment
Formative Assessment icon

How do your students explain the process of condensation?

Listen to their discussion of condensation inside the 2–bottle system to find evidence that students understand that water vapor is the source of water droplets formed during condensation.

Use these criteria to interpret students’ explanations. Do students explain that:

Make sure that everyone in the class understands the transformation of water vapor to water. The next step is to link this process to the process of evaporation.