Back to quiz

6. Which type of rock never contains fossils?

  • igneous
  • sedimentary
  • metamorphic

7. What happens to pieces of rock as they are transported by a river?

  • They get smaller and more rounded.
  • They get smaller and more jagged.
  • They get larger and more jagged.

8. Which statement about metamorphic rocks is correct?

  • They are formed from all types of rock.
  • They are formed when rocks are heated until they melt.
  • They are only formed from heated sedimentary rocks.

9. Which of these is not an example of physical weathering?

  • Acid rain falling on limestone
  • Freeze-thaw
  • Wind blowing sand onto a rock

10. which type of rock is hardest?

  • Sedimentary
  • Igneous
  • Metamorphic

11. Over what sort of time period do sedimentay rocks form?

  • Over millions of years
  • Over thousands of years
  • centuries