This document discusses light and how it interacts with different materials. It introduces the concepts of transparent, translucent, and opaque materials. Transparent materials allow all light to pass through, translucent materials allow some light to pass through, and opaque materials do not allow any light to pass through. The document contains questions about sorting examples into these categories and explaining what happens to light when it meets different objects.

1. How many balls are in the jar?

3. Sort these items into groups. Explain what is happening to the light in each case.

6. Why can’t objects be clearly seen through a translucent object? Try to explain this using the diagram.

7. It shows on this diagram that opaque objects absorb light so foil must absorb all the light that falls on it. Is this true? If not, what does happen to the light rays when they meet foil? Why does this mean that it is opaque?

8. It shows in this diagram that all the light rays are transmitted in transparent objects. Glass cannot be transparent then! What else do light rays do when they meet glass? Is he right then?

9. 8K Light words and heavy meanings Match each word to a definition. 1 transparent 2 opaque 3 translucent 4 absorbs 5 emits 6 reflects A light passes through but it is scattered so you cannot see clear images through it B light can pass through C gives out light D light bounces off E blocks light, creates a shadow F ‘soaks up’ light B light can pass through E blocks light, creates a shadow A light passes through but it is scattered so you cannot see clear images through it F ‘soaks up’ light C gives out light D light bounces off

12. Which of these diagrams show how light rays travel?