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How we see

4th grade (Year 5 in England) · 11 questions · Common Core: NGSS.4-PS4-2, NGSS.4-LS1-2 · England: KS2 Y6 Light

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Date

Score/ 11

1
Question 1
Why do cats' pupils open very wide at night?
- A. To look scary.
- B. To make light.
- C. To keep dust out.
- D. To let in as much light as possible.
2
Question 2
What is the job of the lens?
- A. the hole that lets light into the eye
- B. the coloured ring that makes the pupil bigger or smaller
- C. protects the eye and spreads tears
- D. focuses light onto the back of the eye
3
Question 3
Why can't you see a book in a completely dark room even though your eyes are open?
- A. No light is reflecting off the book into your eyes.
- B. Your eyes are switched off.
- C. Books absorb eyesight.
- D. The book is invisible at night.
4
Question 4
What is the job of the eyelid?
- A. the hole that lets light into the eye
- B. focuses light onto the back of the eye
- C. protects the eye and spreads tears
- D. carries signals from the eye to the brain
5
Question 5
You walk from a dark room into bright sunshine. What happens to your pupils?
- A. They stay the same.
- B. They get smaller to let in less light.
- C. They close completely.
- D. They get bigger.
6
Question 6
What is the job of the optic nerve?
- A. the layer at the back that senses light
- B. protects the eye and spreads tears
- C. carries signals from the eye to the brain
- D. focuses light onto the back of the eye
7
Question 7
Which part of your body actually makes sense of what your eyes detect?
- A. the nose
- B. the pupil
- C. the brain
- D. the eyelashes
8
Question 8
What is the job of the pupil?
- A. the hole that lets light into the eye
- B. the layer at the back that senses light
- C. protects the eye and spreads tears
- D. focuses light onto the back of the eye
9
Question 9
Why do cats' pupils open very wide at night?
- A. To keep dust out.
- B. To let in as much light as possible.
- C. To look scary.
- D. To make light.
10
Question 10
What is the job of the pupil?
- A. the hole that lets light into the eye
- B. focuses light onto the back of the eye
- C. protects the eye and spreads tears
- D. carries signals from the eye to the brain
11
Question 11
Why can't you see a book in a completely dark room even though your eyes are open?
- A. Your eyes are switched off.
- B. The book is invisible at night.
- C. Books absorb eyesight.
- D. No light is reflecting off the book into your eyes.

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