Shadows appear

What it is about

Explain shadows where opaque objects block light.

Year 3 · 7–8 years · 30 challenges

Before you begin

• KS1 habitats, plant needs, healthy choices and material tests.

What the class will do

1. Sort into groups · 8 challenges

   Classify the light tests

   Use the observations on the cards. Decide what they show about light passing through.

2. Choose and explain · 22 challenges

   Explain why a shadow appears

   Predict, compare with a partner and use the stated light path to explain the evidence.

Using it in class

Full bank: 30–40 minutes with discussion; select 5 challenges or a block for a short round. Everyone predicts before a representative acts. Card records provide all observations. Use supervised torch tests to extend; never look directly at the Sun.

Give everyone time to think and discuss before one pupil acts at the board. The class explains and confirms together; hints and explanations stay until you move on.

Use an up-to-date browser on a computer connected to a whiteboard or shared display. Touch, mouse and keyboard; optional audio and reduced motion. No pupil accounts or personal devices.

Choose from 5 challenges up to the full activity. Discussion determines the duration: you set the pace.