Science 2 · Unit 3: Getting materials right · Cambridge Primary Science Stage 2

Questions

1. 1. Why is glass good for a window?

   • It is transparent.
   • It is soft.
   • It is absorbent.
   • It is flexible.
   Check

2. 2. What does transparent mean?

   • It is very strong.
   • It bends easily.
   • You can see through it.
   • Water soaks into it.
   Check

3. 3. Why are chairs and tables often made of wood?

   • Wood is absorbent.
   • Wood is hard and strong.
   • Wood is transparent.
   • Wood is soft and weak.
   Check

4. 4. Why are knives, forks and spoons made of metal?

   • Metal is absorbent.
   • Metal is strong.
   • Metal is transparent.
   • Metal is soft.
   Check

5. 5. Why are cups and bottles made of plastic?

   • Plastic is soft like fabric.
   • Plastic is absorbent.
   • Plastic is waterproof.
   • Plastic is transparent like air.
   Check

6. 6. What would happen to a bike made of rubber?

   • Nothing.
   • It would be faster.
   • It would bend and not hold you up.
   • It would be stronger than metal.
   Check

7. 7. What would happen to a table made of chocolate?

   • It would be very strong.
   • It would be waterproof.
   • It would melt and break.
   • It would last forever.
   Check

8. 8. Which material is best for a towel?

   • rock, because it is hard
   • metal, because it is strong
   • glass, because it is transparent
   • fabric, because it is absorbent
   Check

9. 9. Why are car tyres made of rubber?

   • Rubber is shiny.
   • Rubber is flexible and grips the road.
   • Rubber is transparent.
   • Rubber is absorbent.
   Check

10. 10. Why are car seats made of fabric?

    • Fabric is rigid.
    • Fabric is transparent.
    • Fabric is soft.
    • Fabric is shiny.
    Check

11. 11. Why is the body of a car made of metal?

    • Metal is strong.
    • Metal is absorbent.
    • Metal is transparent.
    • Metal is soft.
    Check

12. 12. Sam says plastic is good for an indoor chair because it is waterproof. Does an indoor chair need to be waterproof?

    • Yes
    • No
    Check

13. 13. A wall can be made of rock because rock is ...

    • strong
    • transparent
    • flexible
    • absorbent
    Check

14. 14. Which is a silly material for a window?

    • see-through glass
    • glass
    • clear plastic
    • wood
    Check