Begin the lesson by discussing the concept of reversible changes in matter, using simple examples like water turning into ice and back into water.

Introduce the idea of 'undo' changes in everyday life, like melting and solidifying crayons.

Explain the concept of reversible changes using water and ice as examples. Discuss how temperature changes can cause these transformations.

Use the video 'Heating Matter and Changes in State' to visually demonstrate how heating affects states of matter, aiding in understanding the transition between solid, liquid, and gas.

Engage students in a discussion about other reversible changes they observe in their environment, like melting butter or chocolate.

Watch the video 'Reversible and Irreversible Changes to Matter' to explore more examples and help students differentiate between reversible and irreversible changes.

Conduct an experiment with crayons: melt them and then let them solidify to demonstrate reversible changes.

Use the 'Properties and Temperature' assessment to guide students through observing changes in crayons as they melt and solidify.

Ask students to find examples of reversible changes at home and document their findings with drawings or photos.

Use the 'Reversible and Irreversible Change' assessment to evaluate students' understanding of the concepts taught.

Discuss the experiments and findings with the class. Encourage students to share their observations and insights.

Administer the 'Review – Changes to Matter' assessment to reinforce learning and ensure comprehension of reversible changes.