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Colour is all around us but what makes it and how does it get there?

Energy - Light, Colours and Rainbows

Light can split into many colours. Explore how rain, sunshine and water drops work together to make rainbows and what colours you can spot in the sky.

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Fascinating Fact:

Rain and sun. Rainbows appear when sunlight shines through raindrops in the sky. Sun behind you, rain in front.

In KS1 Science, children discover that white light is made of many colours. When light passes through water droplets or glass, it bends and separates, creating beautiful colour patterns like rainbows.

Key Terms

Rainbow: A coloured arc in the sky made when sunlight is split by raindrops.
Spectrum: The range of colours that make up white light, such as red through to violet.
Refraction: The bending of light when it moves through water or glass.

Frequently Asked Questions (Click to see answers)

How do you explain rainbows to KS1 children?

A rainbow happens when sunlight shines through tiny raindrops. The raindrops bend the light and split it into different colours, which we see as a curved band in the sky.

What colours are in a rainbow for primary science?

Children usually learn that a rainbow shows red, orange, yellow, green, blue, indigo and violet. They do not need to remember every name perfectly in KS1, just notice the pattern.

Can you make a rainbow in the classroom or at home?

Yes. You can shine sunlight or a torch through a clear glass of water, a prism or a spray of water to split the light and create a mini rainbow on a wall or paper.

Try These Related Quizzes

1 .

Why are fire engines painted bright red and yellow?

So they look good

So they stand out and can be seen easily

So they look smart

So they look clean

Red means danger. The fire engine can be seen easily. Fire engines also have bright flashing lights.
Police cars are painted in bright blue and yellow so they stand out. They have bright blue flashing lights.
Ambulances are painted in bright green and yellow so they stand out. They have flashing lights, too.

2 .

What does a red light mean?

Stop

Keep going

Turn round

Red lights are used on roads and on railways

3 .

This is a prism. It is a block of glass. Toni shines a ray of white light through the prism. What does she see on the other side?

White light

Nothing

The colours of the rainbow

Only yellow light

Have you ever done this at school?

4 .

In winter, the Sun is very low in the sky. The sunlight is not as white. What colour is the sunlight when the Sun is very low in the sky?

Blue

Green

Grey

Yellow

The Sun is still very powerful. Remember, never to look directly at the Sun

5 .

Daylight comes from the Sun. Daylight is often called:

White light

Blue light

Red light

Green light

The sunlight is white in the picture. What colour is the sky?

6 .

Amy is in a park. She is blowing bubbles. She looks carefully at one of the bubbles. What does she see?

Nothing

Lots of different colours

The bubble is grey

The bubble is red

The surface of the bubble is all different colours. The colours swirl about

7 .

Why are flowers so bright and colourful?

So they look nice

So we will pick them

So they will attract lots of bees and butterflies

So they warn off bees and butterflies

What is your favourite flower? And what is your favourite colour?

8 .

What do people say is at the end of the rainbow?

Yellow bricks

A pot of gold

A silver lining

Dark clouds

Is there really a pot of gold at the end of the rainbow?

9 .

Most plants are _____ in colour.

Red

Yellow

Green

Blue

Plants are green. The green colour helps plants to catch the sunlight. They need the light to grow

10 .

Alice has painted this picture. What is it?

A bridge

A tunnel

A scarf

A rainbow

Have you seen a rainbow? What colours can you see in a rainbow?

Author: David Bland (Former Physics Teacher, KS1 Science & Geography Quiz Writer)

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