Answer Key
Earthquakes & Volcanoes
Chapt. Review text pp. C30 - C31

VOCABULARY REVIEW

1. Magma Chamber
2. Seismograph
3. Earthquake
4. Crater
5. Vent
6. Lava
7. Crust, Mantle
8. Magma
9. Core
10. Epicenter
11. Plates
12. Volcano
13. Focus
14. Fault Volcanoes

CONNECT CONCEPT

15. Crust
16. Mantle
17. Core
18. Plates
19. Earthquakes
20. Volcanoes

CHECK UNDERSTANDING

21. A, Crater
22. J, Very Quickly
23. B, Inner Core
24. H, Composite
25. A, Add minerals to the soil


Critical Thinking: Choose one of the questions. Write a short essay. Answer in complete sentences.

(Sample responses)

26. During an earthquake, pressure that has built up between two pieces of Earth’s crust is released, and the pieces move. Pressure that has built up inside Earth is also released when a volcano erupts.

27. A seismograph measures movement of earth. Before volcanoes erupt, they sometimes move. these movements can be recorded on a seismograph.


Bonus:
Process Skills: Choose 1 of the questions. Write a short essay.
Answer in complete sentences.
(Sample Responses)

28. People can learn a lot about volcanic eruptions from models without being exposed to the danger of the actual eruption.

29. As a tire is pumped up, it gets larger. If too much air is pumped into the tire, the tire will explode.

30. If you knew how much air the tire holds, you could measure how much air to put in and stop when the tire is full of air. That way the tire would not explode from too much air.