Lesson Planning

Teaching

• Learn about what happens when a material is heated up and why it changes shape.
• Role play what happens to the particles in a material when it is heated.
• Chop up old wax crayons and heat in moulds in the microwave/oven.
• Experiment with different moulds for different shaped crayons. Which shapes are more useful for holding and colouring with the wax?

Activities

1. Understand what happens when a material is heated up and why it changes shape
2. Discuss the importance of recycling materials
3. Understand and experience recycling by remoulding wax crayons in new and different shapes

Investigation - exploring
Make a batik wax piece of art by applying molten wax to a piece of cotton and dying it. Chop up old wax crayons and heat in moulds in the microwave/oven. Make new wax crayon in a different shape.
Year 1 - Learn about what happens when a material is heated up and why it changes shape.
Year 2 - Role play what happens to the particles in a material when it is heated.

Vocabulary
Material, properties, absorbency, waterproof, strong, resist