What happens when something dissolves? | 11-14 years

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Explore the process of dissolving and help your students explain observations using the particle model with this lesson plan and activities for 11–14 year olds.

In this activity, students interpret information gained from practical work. They observe some simple practical demonstrations and use a question sheet to help them think about the process of dissolving.

Students will be able to:

Calculate the mass of solution from the masses of the liquid and the solids.
Describe that particles of the solid are dispersed throughout the liquid.
Describe the process of diffusion and say why this is evidence of the movement of particles in a liquid.

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