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More About Light Sources

In this worksheet, students will answer questions about light and dark and how we need light to see.

'More About Light Sources' worksheet

Key stage:  KS 2

Curriculum topic:   Light

Curriculum subtopic:   Light and Dark

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

We know when it is daytime because it is light. Daylight comes from the Sun.

Things which make light are called sources of light

Light bulb

The Sun is a bright source of light. A light bulb is not as bright as the Sun.

Candles are not a bright source of light, we say they are dim.

We can see because light enters (goes into) our eyes. Very bright lights, like the Sun can hurt our eyes.

When there is no light (when it is dark) we cannot see. We use lights in the dark so that we can still see things.

The Moon is not a source of light. The Moon reflects light from the Sun.

OK, so let's see if that makes sense!

Which three of these are sources of light?

computer screen

shiny diamond ring

torch

car headlights

To see things, light must...

be very bright

be very dim

enter our eyes

Sun

 

Why is it dangerous to look at the Sun?

because it's a long way away

because it will hurt our eyes

Light bulb   Candle

 

Which is the brightest source of light out of these two - light bulb or candle?

the light bulb

the candle

Torch/flashlight Car headlight
torch car headlight

 

Which is the dimmest source of light out of these two?

the torch

the headlight

Shadows of people

 

The word shadow means there is...

very bright light

something blocking the light

no light

On cloudy days the daylight is dimmer because...

the Sun is dimmer

the clouds block the Sun's light

We see stars at night because stars are...

a source of light

a long way away

 

We can see the Moon in the night sky. We see the Moon because...

it is a source of light

it reflects the light from the Sun

Hi-vis jacket

 

What do the silver strips on this vest do?

make light

reflect light (shine in the dark)

  • Question 1

Which three of these are sources of light?

CORRECT ANSWER
computer screen
torch
car headlights
EDDIE SAYS
Shiny materials (like the shiny diamond ring) only look shiny when they are in light. They do not make light.
Computer screens, torches and car headlights all make light. They are sources of light.
  • Question 2

To see things, light must...

CORRECT ANSWER
enter our eyes
EDDIE SAYS
It's harder to see when the light is dim because not much light is entering our eyes.
  • Question 3

Sun

 

Why is it dangerous to look at the Sun?

CORRECT ANSWER
because it will hurt our eyes
EDDIE SAYS
Never look at the Sun! The Sun will burn our eyes if we look straight at it because it is very bright.
  • Question 4

Light bulb   Candle

 

Which is the brightest source of light out of these two - light bulb or candle?

CORRECT ANSWER
the light bulb
EDDIE SAYS
The light bulb is a brighter source of light as it gives out more light. Candles are dimmer than light bulbs, so they do not provide as much light.
  • Question 5
Torch/flashlight Car headlight
torch car headlight

 

Which is the dimmest source of light out of these two?

CORRECT ANSWER
the torch
EDDIE SAYS
The torch is dimmer than the car's headlights (when they are lit!).
  • Question 6

Shadows of people

 

The word shadow means there is...

CORRECT ANSWER
something blocking the light
EDDIE SAYS
When something blocks out the light, it makes a shadow. You can experiment making shadows with a torch!
If there was no light, then we would not be able to see anything and there would be no shadow.
  • Question 7

On cloudy days the daylight is dimmer because...

CORRECT ANSWER
the clouds block the Sun's light
EDDIE SAYS
When there are clouds in the sky, they stop some of the Sun's light from getting through, so the light is dimmer.
  • Question 8

We see stars at night because stars are...

CORRECT ANSWER
a source of light
EDDIE SAYS
Stars are a very long way away. They are big, like our Sun, but look tiny because they are so far away. Stars are a source of light - they make light.
  • Question 9

 

We can see the Moon in the night sky. We see the Moon because...

CORRECT ANSWER
it reflects the light from the Sun
EDDIE SAYS
The Moon is a big rock! The Moon is lit by the Sun and reflects the sunlight.
  • Question 10

Hi-vis jacket

 

What do the silver strips on this vest do?

CORRECT ANSWER
reflect light (shine in the dark)
EDDIE SAYS
Materials which reflect light keep us safe when it is dark. Other people can see us!
---- OR ----

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