Download 7-1 and 7-2 practice quiz

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7-1 and 7-2 review Worksheet
1. What is the difference between magma and lava?
a. Both are molten, liquid rock. Magma is above ground and lava is underground.
b. . Both are molten, liquid rock. Magma is below ground and lava is above ground.
c. They are the same thing.
d. One is solid rock and one is liquid rock.
2. What is a volcano?
a. molten rock within the Earth
b. any solid material erupted from a volcano; grouped by size
c. the circular opening through which molten rock leaves Earth’s interior.
d. land or underwater feature that forms when molten rock reaches Earth’s surface
3. What is a vent?
a. molten rock within the Earth
b. any solid material erupted from a volcano; grouped by size
c. the circular opening through which molten rock leaves Earth’s interior.
d. land or underwater feature that forms when molten rock reaches Earth’s surface
4. What is a magma?
a. molten rock within the Earth
b. any solid material erupted from a volcano; grouped by size
c. the circular opening through which molten rock leaves Earth’s interior.
d. land or underwater feature that forms when molten rock reaches Earth’s surface
5. What is a tephra?
a. molten rock within the Earth
b. any solid material erupted from a volcano; grouped by size
c. the circular opening through which molten rock leaves Earth’s interior.
d. land or underwater feature that forms when molten rock reaches Earth’s surface
6. What is a lava?
a. molten rock on Earth’s surface
b. any solid material erupted from a volcano; grouped by size
c. the circular opening through which molten rock leaves Earth’s interior.
d. land or underwater feature that forms when molten rock reaches Earth’s surface
7. What is a fissure eruption?
a. magma escaping from narrow cracks in Earth’s crust in a eruption.
b. an explosive eruption
c. magma
d. lava
8. What is a hot spot?
a. fissure eruption
b. occur only at plate boundaries
c. localized areas of high heat away from plate boundaries
d. circular or oval shaped opening of a volcano
9. What is an example of a hot spot?
a. fissure eruptions
b. The Hawaiian Islands
c. The ring of Fire
d. an island arc
10. What kind of eruptions occur at divergent plate boundaries?
a. quiet eruptions
b. fissure eruptions
11.
12.
13.
14.
15.
16.
c. explosive eruptions
d. both a. and b.
What is the name of the belt of volcanoes that circle the Pacific Ocean?
a. The Hawaiian Islands
b. Yellowstone
c. The Ring of Fire
d. Island arcs
Where are most volcanoes found?
a. at convergent, divergent, and transform boundaries
b. at convergent plate boundaries
c. at divergent plate boundaries
d. at divergent and convergent plate boundaries
What makes magma rise?
a. lava
b. it is less dense than the surrounding rock
c. it is more dense that the surrounding rock
d. fissure eruptions
Volcanic eruptions can contain…
a. magma, liquids and gases
b. solids and gases
c. gases and liquids
d. solids, liquids and gases
What can lower the viscosity of lava?
a. high silica
b low temperature
c. low silica
d. low silica and high temperature
What is the crater of a volcano?
a. the circular or oval opening through which molten rock leaves the interior of the Earth
b. molten rock on Earth’s surface
c. The steep walled depression around the vent
d. A fissure eruption
Fill in the table below
Volcano or lava type
Type of Eruption
Granitic lava
17.
Basaltic lava
18.
Pahoehoe
19.
AA
20.
Cinder cone volcano
21.
Shield volcano
22.
Composite Volcano
23.
Magma/lava with high viscosity
24.
Magma/lava with low viscosity
25.