Name_____________________________________________________________________________ Date________________________________ Hour_________________

Study guide - Volcanoes

True or False

__________1. All volcanoes form at plate boundaries

__________2. Cinder cones are usually found at the edges of larger volcanoes.

__________3. A shield volcano has long, gentle slopes.

__________4. A shield volcano has an explosive nature, therefore it is potentially dangerous to humans and the environment.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.__________5. Magma erupts through an opening in Earth’s crust called a vent. ____________________________________________________

__________6. Cinder-cone volcanoes have steep sides and are generally the smallest volcanoes.______________________________________

__________7. Volcanoes associated with convergent plate boundaries form the Circum-Pacific and the Mediterranean Belts. _____

__________8. The chain of volcanoes submerged beneath the Pacific Ocean is known as the Ring of Heat. ___________________________

__________9. Volcanic eruptions have a negative effect on air quality. ___________________________________________________

_________10. Cinder Cone volcanoes are a combination of explosive and non-explosive eruptions. _________________________________

_________11. An opening in Earth’s crust through which lava erupts is called a vent. _________________________________________

_________12. A caldera is a bowl-shaped depression around the vent at the top of a volcano. ________________________________________

_________13. A depression that forms when the top or side of a volcano collapses into the magma chamber is a crater. ___________

_________14. Most of the world’s volcanism occurs at convergent boundaries. ________________________________________________

Multiple Choice

_________15. Which of the following are landscape features associated with volcanoes? a. uplift, erosion, weathering, and deposition b. hot spots and flood basaltsc. vents, craters and calderas d. batholiths, stocks, sills, dikes and laccoliths

_________16. A string of volcanoes usually indicatesa. plate boundaries b. bodies of water c. the center of continents d. mountainous areas

_________17. Which of these would you expect to see during a non-explosive eruption?a. giant fountains of lava and rock b. clouds of ash darkening the skyc. a mountain side caving in d. huge lava flows

_________18. Molten rock deep underground often gathers in a a. vent b. magma chamber c. crater d. caldera

_________19. Volcanoes are characterized bya. age and height b. size and shape c. soil and color d. location and shape

_________20. The three main types of volcanoes area. shield, pahoehoe, and vented b. cinder, cone and compositec. cinder cone, lapilli, and caldera d. shield, composite, and cinder cone

_________21. Which of these describes a possible climate change caused by a volcanic eruption?a. temperatures rise because of the heat coming from the lava b. scorched land creates drought conditionsc. ash blocks sunlight, causing temperatures to drop d. volcanic eruptions rarely affect climate

_________22. The Hawaiian Islands are locateda. along a plate boundary b. far from any plate boundaryc. over a lava fountain d. on lava plateaus

_________23. When clouds of ash and tephra go down a mountain side it is called_____________________________________a. lava b. pyroclastic flow c. magma d. dangerous

_________24. The volcanoes of Hawaii and other places far from tectonic plate boundaries are known asa. calderas b. mid-ocean ridges c. hot spots d. viscous volcanoes

Correctly match the parts of the volcano._________25. crater _________26. ash cloud

_________27. pyroclastic flow _________28. Volcanic bombs

_________29. main vent _________30. lava flow

_________31. magma chamber _________32. secondary vent

Match the volcano type with the correct name or description below. a. shield volcano b. composite volcano

c. cinder cone volcano

_________33. broad, gently sloping sides

_________34. steep sided

_________35. largest of the volcanoes

_________36. forms as tephra ejected high into the air fall back to Earth and pile around the vent

_________37. _________38. _________39.

Use the diagram on the right to answer the next three

questions.

_________40. According to the diagram, which Hawaiian Island is the oldest?a. Loihi b. Ni’ihau c. Hawaii

d. Molokai

________41. Where would the most active volcano be located on this diagram?a. Maui b. Kauai c. Oahu

d. Hawaii

_________42. What is the next volcano to form?a. Mauna Loa b. Lo’ihi c. Kilauead. Maui

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