Lesson 1: Sources of light

Before starting this unit, check the children can recall some of the following key facts from the unit Science, Year 2, Materials: Uses of everyday materials:

• A material is what an object is made from.

• Examples of materials include glass, stone, water and plastic.

• A property of a material is something that describes a material or substance (for example, hard, flexible, red, stretchy or opaque).

• You can see through something transparent.

• You cannot see through something opaque.

Use the Activity: Recap and recall: Light and shadows mind map (one each) if needed to elicit the children's prior knowledge.