Science 4 · Unit 3: Materials · Cambridge Primary Science Stage 4

Questions

1. 1. Arun pours 250 ml of water into three containers of different shapes. What happens to the water?

   • It changes shape to fit each container.
   • Its amount changes in each container.
   • It keeps the same shape in every container.
   • It turns into a solid.
   Check

2. 2. Why did Arun pour the same amount of water into each container?

   • so that only the shape of the container was different
   • so that the water would freeze
   • because the containers were all the same
   • so that the water would change colour
   Check

3. 3. Particles in a liquid are close together, but they can ... past each other.

   • shake
   • slide
   • stick
   • freeze
   Check

4. 4. Because liquid particles can change places, liquids can change ... easily.

   • temperature
   • colour
   • weight
   • shape
   Check

5. 5. Can Arun show wood changing shape the way water does?

   • No, a solid keeps its shape.
   • Yes, wood flows like water.
   • Yes, if he uses a bigger container.
   • No, wood is a liquid.
   Check

6. 6. Why can't a block of wood change shape like water?

   • Its particles are packed closely in fixed positions.
   • Its particles slide past each other.
   • It has no particles.
   • Its particles are far apart.
   Check

7. 7. How does the particle model explain why solids and liquids behave differently?

   • Solid particles stay in fixed places, but liquid particles can move around each other.
   • Liquid particles stay in fixed places, but solid particles move around.
   • Solids have particles but liquids do not.
   • Solid particles are bigger than liquid particles.
   Check

8. 8. Sand is a solid. In what way does sand behave like a liquid?

   • It can be poured and takes the shape of its container.
   • Each grain of sand changes shape.
   • It melts in your hand.
   • It can be squashed into a smaller space.
   Check

9. 9. Why is sand able to behave like a liquid?

   • It is a liquid that looks like a solid.
   • Each grain melts into a liquid.
   • It is made of many tiny solid grains that can move past each other.
   • It is wet.
   Check

10. 10. Which of these is a solid that can be poured like a liquid?

    • rice
    • a brick
    • a spoon
    • a pencil
    Check

11. 11. Which of these is a solid that can be poured like a liquid?

    • a cup
    • a book
    • a coin
    • salt
    Check

12. 📖 This question is about a text that students read in the app.

    12. How long did 50 ml of sand take to flow through the funnel?

    • 10 minutes
    • 1 minute
    • 4 minutes
    • 7 minutes
    Check

13. 📖 This question is about a text that students read in the app.

    13. How long did 100 ml of sand take to flow through the funnel?

    • 4 minutes
    • 1 minute
    • 10 minutes
    • 7 minutes
    Check

14. 📖 This question is about a text that students read in the app.

    14. How long did 250 ml of sand take to flow through the funnel?

    • 7 minutes
    • 10 minutes
    • 1 minute
    • 4 minutes
    Check

15. 📖 This question is about a text that students read in the app.

    15. How long did 500 ml of sand take to flow through the funnel?

    • 7 minutes
    • 4 minutes
    • 1 minute
    • 10 minutes
    Check

16. 📖 This question is about a text that students read in the app.

    16. What pattern do the sand results show?

    • The more sand there was, the longer it took to flow through.
    • The more sand there was, the faster it flowed through.
    • Every amount of sand took the same time.
    • The less sand there was, the longer it took.
    Check

17. 17. Which factor, other than the amount of sand, could change how fast sand flows through the funnel?

    • the time of day
    • the name of the person timing
    • the colour of the beaker
    • the size of the hole in the funnel
    Check

18. 18. Which other factor could change how fast sand flows through the funnel?

    • the size of the sand grains
    • the colour of the sand
    • who pours it
    • the shape of the beaker below
    Check

19. 19. Would wet sand flow through the funnel faster or slower than dry sand?

    • faster
    • slower
    Check

20. 20. How would a wider hole in the funnel change the flow of the sand?

    • The sand would flow through faster.
    • The sand would flow through slower.
    • The sand would not flow at all.
    • It would make no difference.
    Check