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Year 6 · Science · Light · Lesson 1

How we see

How we see: light travelling in straight lines, light sources and reflectors, reflection into the eye, and drawing ray diagrams.

Whiteboard video lesson: How we see

13-minute video lesson

Teaching, worked examples and 20 practice questions solved step by step.

Watch free for a month

What your child will learn

  • Explain that light travels in straight lines
  • Distinguish sources and reflectors
  • Explain how we see objects
  • Draw ray diagrams

The method

  1. Source, object, eye.
  2. Ray to object.
  3. Ray to eye.
  4. Arrows in.

Key words: light, ray, reflect, light source, opaque, transparent.

Worked examples

The first three practice questions from the lesson, with every step.

Question 1

How does light travel?

  1. Step 1: Straight

Answer: in straight lines

Question 2

Name three light sources.

  1. Step 1: Sun...

Answer: e.g. the sun, a torch, a candle flame

Question 3

Is the moon a light source?

  1. Step 1: Reflects

Answer: no - it reflects light from the sun