The colours of light from which all other colours of light can be made (red, green and blue).

Colours of light that are made by mixing two primary colours in equal amounts.

The back surface of the eye that detects light.

The cells at the back of the eye that detect colour.

The cells at the back of the eye that detect brightness.

Seeing in colour

Science

The visible spectrum

Reflecting colour

A pinhole camera

Reflected images

Refracting light

Focusing light

In the Waves unit, they will build on this knowledge to learn about the properties and propagation of transverse and longitudinal waves.

In the Sound, light and vision unit, pupils learnt how sound waves travel through different types of medium and are absorbed and reflected, how light is reflected off mirrors, and how the eye can see objects by the light they reflect.

This unit explores the transmission of light, including absorption, scattering, and reflection, and the use of the ray model in imaging, refraction, and lenses. It also covers energy transfer in various processes, using safe techniques, making accurate observations, and improving reliability.

Making images

Physical activity and equipment requiring safe use

Which of the following are the primary colours of light?

Which of the following are the secondary colours of light?

Which of the following colours is seen by people who do not have colour blindness if equal amounts of blue light and green light are mixed?

It switches off all pixels in the rectangle.

It switches on all the grey pixels in the rectangle.

It switches on all the pixels of two colours in the rectangle.

It switches on all pixels in the rectangle at equal intensities.

How does a typical computer or mobile phone screen show a grey rectangle?

the back surface of the eye that detects light

type of cell at the back of the eye that detects colour

type of cell at the back of the eye that detects brightness

Match each part of the eye with its description.

Mixing yellow light and blue light makes green light. 

Adding a second colour of light to a first makes a lighter or brighter colour.

It is impossible to mix primary colours of light to make light that looks brown.

Which of the following statements is correct?

All of the light is being sucked out of the room.

A room is completely dark inside. Which of the following statements explains why?

Light must travel from our eyes to the object.

Light must travel from the object to our eyes.

All of the light from the object must enter our eyes.

Which of the following must happen for us to see a real object?

Light reflects off the screen into our eyes.

Light emitted by the screen enters our eyes.

Light emitted by our eyes hits the screen and returns to our eyes.

Which of the following explains how we see text and pictures displayed on a computer screen or phone screen?

Light travels from the object to our eye.

Sort the following statements into the correct order to describe what happens when we see an object with our eye.

Which of the following colours are often described as the three primary colours of paint, which can be mixed to make many other colours of paint?

Which of the following words means ‘brightness’ when it is used to describe light?

Starter Quiz