Question 1
Look at the picture. Draw circles around the light sources.
Cambridge Primary (1-6). Stage 2. Science. Workbook - Unit 5: Light
Question 2
Label the light sources using these words: flame; lamp; street light; flashlight.
Question 3
Draw another light source from the picture here. The room picture and its four labels are shown again.
Question 4
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (flashlight)
Is this a light source? (flashlight)
Question 5
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (burning match)
Is this a light source? (burning match)
Question 6
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (doorbell)
Is this a light source? (doorbell)
Question 7
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (Sun)
Is this a light source? (Sun)
Question 8
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (lamp)
Is this a light source? (lamp)
Question 9
Look at the pictures below. Use a ✓ or ✘ to say which is a light source and which is not.
Is this a light source? (clouds)
Is this a light source? (clouds)
Question 10
The children can see that the Sun has nearly gone and the Moon is in the sky.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Which two children are right?
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Which two children are right?
Question 11
The children can see that the Sun has nearly gone and the Moon is in the sky.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Which child is wrong?
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Which child is wrong?
Question 12
The children can see that the Sun has nearly gone and the Moon is in the sky.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Now use these words to complete these sentences: makes its own light; does not make its own light.
Sofia is right because she knows that the Sun ______.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Now use these words to complete these sentences: makes its own light; does not make its own light.
Sofia is right because she knows that the Sun ______.
Question 13
The children can see that the Sun has nearly gone and the Moon is in the sky.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Now use these words to complete these sentences: makes its own light; does not make its own light.
Arun is wrong because the Moon ______.
Sofia says, “The Sun is a light source.” Arun says, “The Moon is bright – it must be a light source.” The child on the right says, “The Moon is not a light source – it reflects light from the Sun.”
Now use these words to complete these sentences: makes its own light; does not make its own light.
Arun is wrong because the Moon ______.
Question 14
Ashrif makes a tent in his classroom. He has some objects in the tent. Some are dark in colour. They may be hard to find.
Which objects will be easy or hard to find in the dark? Use a ✓ or ✘.
Which objects will be easy or hard to find in the dark? Use a ✓ or ✘.
Question 15
Jan is doing science. She is looking in the box with no light, a little light and lots of light.
Choose the right sentence for each picture. This is the top picture.
Choose the right sentence for each picture. This is the top picture.
Question 16
Jan is doing science. She is looking in the box with no light, a little light and lots of light.
Choose the right sentence for each picture. This is the middle picture.
Choose the right sentence for each picture. This is the middle picture.
Question 17
Jan is doing science. She is looking in the box with no light, a little light and lots of light.
Choose the right sentence for each picture. This is the bottom picture.
Choose the right sentence for each picture. This is the bottom picture.
Question 18
Jalil works at night. In the picture she wears a head lamp and a reflective jacket, uses a computer and is near a car with headlights on.
Answer these questions.
Why does Jalil wear a head lamp?
Answer these questions.
Why does Jalil wear a head lamp?
Question 19
Jalil works at night. In the picture she wears a head lamp and a reflective jacket, uses a computer and is near a car with headlights on.
Answer these questions.
Why does she wear a jacket that reflects light?
Answer these questions.
Why does she wear a jacket that reflects light?
Question 20
Jalil works at night. In the picture she wears a head lamp and a reflective jacket, uses a computer and is near a car with headlights on.
Answer these questions.
Why is the computer easy to read at night?
Answer these questions.
Why is the computer easy to read at night?
