1. “VOLCANOES” STUDY QUIZ

2. #1 ◦ The early Hawaiians told stories about volcanoes and Vulcan, their god of fire. ◦ True or False

3. Answer ◦ False. The Romans god of fire was Vulcan.

4. #2 ◦ What are the top layers of solid rock on the earth’s surface called?

5. Answer ◦ The top layers are called crust. Pg 85

6. #3 ◦ When does magma become lava?

7. Answer ◦ Magma becomes lava when it pours out onto the surface. Pg. 85

8. #4 ◦ Which mountain created the most destructive volcanic eruption in the history of the United States?

9. Answer ◦ Mount St. Helens

10. #5 ◦ Where do almost all of the volcanoes in the world erupt? ◦ On the Hawaiian Island of Mauna Loa ◦ Along the coast of Iceland ◦ Where the earth’s plates meet ◦ None of the above

11. Answer ◦ Where the earth’s plates meet

12. #6 ◦ What was left in place of the top of Mount St. Helens after the volcanic eruption of 1980?

13. Answer ◦ After the volcanic eruption a crater was left at the top of Mount St. Helens. Pg. 88

14. #7 ◦ What are the names of the two kinds of lava in Hawaiian volcanic eruptions? ◦ Oee and palla ◦ Lavee and vallacalla ◦ Aa and pahoehoe ◦ None of the above

15. Answer ◦ Aa and pahoehoe

16. #8 ◦ List two of the four types of volcanoes. (extra credit if you can name all four)

17. Answer ◦ Shield, Cinder Cone, Composite (strato-volcano) dome. Pgs. 94,95,96

18. #9 ◦ What are volcanoes that no longer erupt called?

19. Answer ◦ They are called extinct volcanoes. Pg. 97

20. #10 ◦ What do volcanoes create? ◦ New islands ◦ New soil ◦ New mountains ◦ Both a and c are correct.

21. Answer ◦ Both a and c are correct. Volcanoes create new islands and new mountains.

22. #11 Define molten: Charred bits of rock; ash Made liquid by heat

23. Answer ◦ Molten ◦ Made liquid by heat

24. #12 ◦ Define lava: ◦ A bowl shaped depression ◦ Hot melted rock that flows from a volcano

25. Answer ◦ Lava: ◦ Hot melted rock that flows from a volcano

26. #13 ◦ Define crater: ◦ A volcanic explosion or large flow of lava ◦ A bowl shaped depression

27. Answer ◦ Crater: ◦ A bowl shaped depression

28. #14 ◦ Define cinders: ◦ Made liquid by heat ◦ Charred bits of rock; ash

29. Answer ◦ Cinders: ◦ Charred bits of rock; ash

30. #15 ◦ Define eruption: ◦ Hot melted rock underneath the earth’s surface ◦ A volcanic explosion or large flow of lava

31. Answer ◦ Eruption: ◦ A volcanic explosion or large flow of lava

32. #16 ◦ Define magma: ◦ Hot melted rock underneath the earth’s surface ◦ Made liquid by heat

33. Answer ◦ Magma: ◦ Hot melted rock underneath the earth’s surface

34. #17 ◦ Define summit

35. Answer ◦ The top of a mountain