Teaching
- Understand, through practical tasks, that materials change state when they are heated or cooled and describe this process using scientific language.
Activities
- Use role-play as a model of how a substance can change from one state to another.
- Learn to accurately use a thermometer.
- Use scientific language to describe to another what happens to the particles when a substance changes state.
- Make careful observations over time.
- Use a data logger to record temperature over time and interpret the results.
- Understand that liquids have a solidifying point (to become solid) and a boiling point (to change to gas).
Investigation - observing over time/exploring
Understand the behaviour of particles in the different states and use a thermometer to observe temperature changes of water.
Vocabulary
Solidifying, freezing, melting, condensing, evaporating, particles, thermometer, temperature, Celsius, Fahrenheit, degrees