Unit 4: Light and dark

Where light comes from, what darkness is, and how shadows are made.

• 4.1 Light sources – The Sun, a lamp, a firefly – what gives out light?
• 4.2 Darkness – What happens when there is no light at all?
• 4.3 Making shadows – Block the light and you make a shadow.
• 4.4 Shadow shapes – Make shadows bigger, smaller – even shadow puppets!