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Grades 6, 7 and 8 - Science - Middle School - Earthquakes and Volcanoes
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Earthquakes are measured on the Richter scale. Earthquakes involve a sudden release of energy in the Earth's crust whilst a volcano means an opening or rupture in the crust. Earthquakes are measured with a seismometer. A magnitude of 3 or lower is mostly imperceptible, however a magnitude of 7 can cause serious damage over large areas.

 

Grades 6, 7 and 8 - Science - Middle School - Earthquakes and Volcanoes
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25 Questions

1. Earthquakes are most likely to happen where?
2. The earth is made up of how many layers?
3. Which layer is immediately below the earth's crust?
4. The earth's crust is made up of separate pieces called what?
5. Earthquakes on the seabed can cause what?
6. Large rocks thrown from a volcano have what name?
7. What is the underground point where an earthquake starts?
8. An earthquake can be measured on what scale?
9. Where the edges of plates meet is called what?
10. Why doesn't the UK have any active volcanoes?
11. Volcanoes that have erupted recently are called what?
12. What type of volcano has not erupted for many years but could still do so?
13. What instrument is used to measure an earthquake?
14. What kind of volcanic 'flow' includes hot gas, ash and lava?
15. What is the name for the main opening in a volcano?
16. The earth's core is mainly made up of which metal?
17. An earthquake sends out what type of waves?
18. A volcano not expected to erupt again is called what?
19. Which ocean has a ring of earthquakes and volcanoes around its edge?
20. What is the name of the earth's thin surface layer?
21. Which volcanoes are formed from runny lava and have gently sloping sides?
22. What word describes the plates of the earth's crust?
23. How can you tell that South America and Africa were once joined?
24. The volcano that erupted in Washington state in 1980 was Mount what?
25. Heated underground water rising to the surface under huge pressure is a...?

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