How light travels
I can explain that light travels in straight lines.
Lesson details
Key learning points
- We need light to be able to see things.
- Light travels out from a source of light in all directions.
- Light travels in straight lines.
- Scientists use diagrams to show light travelling in straight lines .
Keywords
Light - We can detect with our eyes in order to see things.
Light source - Something that is a light source produces its own light.
Record - To record information is to keep it so that it can be passed on to others. This can be done in many ways including notes, tables, photos and drawings.
Diagram - A diagram is a simplified drawing of information.
Common misconception
When children think of light, they do not necessarily think of it as travelling. Also that light is found only in bright areas and not in the space between.
Provide opportunities for children to think of different ways to model and record travelling light so it is seen as a continuous straight line.
Equipment
Torches, thick card (some pre-cut with holes in the centre) and string.
Content guidance
- Risk assessment required - equipment
- Exploration of objects
Supervision
Adult supervision required
Licence
Lesson video
Loading...
Prior knowledge starter quiz
6 Questions
Q1.What does light allow us do?
Q2.Which of these is true about sunlight?
Q3.Match the physical property to the description
light cannot pass through it
lets some light through but is not completely see-through
lets light pass through and is completely see-through
Q4.Which of these pieces of equipment would help you record light measurements outside over the course of a day?
Q5.What is the unit of light?
Q6.Darkness is the of light.
Assessment exit quiz
6 Questions
Q1.We need to be able to see things with our eyes.
Q2.What is a light source?
Q3.What is a diagram?
Q4.In which direction does light travel from a light source?
Q5.Light travels in lines.
Q6.Which of these correctly shows how light travels?
