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Science 6- Volcano

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What are the individual substances that make up rocks?

a)

igneous

b)

minerals

c)

feldspar

2.

Which is the "fiery rock", formed by cooling magma?

a)

igneous

b)

sedimentary

c)

metamorphic

3.

Igneous rock made of several different types and colors of minerals. It has holes and floats in the water.

a)

obsidian

b)

pumice

c)

basalt

4.

Another igneous rock that is formed from bones and seashells.

a)

slate

b)

shale

c)

limestone

5.

An igneous rock that is clear and also a black glass.

a)

obsidian

b)

slate

c)

gypsum

6.

This rock smells like a mud.

a)

slate

b)

shale

c)

graphite

7.

What type of rock forms when molten rock solidifies?

a)

igneous

b)

sedimentary

c)

metamorphic

8.

Name given to melted rock while still underground.

a)

magma

b)

lava

c)

ash cloud

9.

A reservoir of magma a few miles beneath the surface that may give rise to a volcano

a)

Ring of Fire

b)

magma chamber

c)

Pacific Ocean

10.

A vent that allows molten rock and hot gases to escape from within the earth.

a)

eruption

b)

fumaroles

c)

volcano

11.

Holes or cracks serving as escape vents for underground gases.

a)

eruption

b)

fumaroles

c)

volcano

12.

The belt of volcanoes that encircles the Pacific Ocean.

a)

Ring of Fire

b)

crater

c)

fumaroles

13.

A dome shaped volcanoes formed by eruptions of fluid, runny lava.

a)

cinder cone volcano

b)

shield volcano

c)

composite

14.

A depression at the top of the volcano

a)

crater

b)

ash cloud

c)

magma chamber

15.

A relatively small , cone shaped volcanoes formed mostly of tephra and quickly eroded.

a)

cinder cone volcano

b)

shield volcano

c)

composite volcano

16.

A large bowl shaped depression formed when an underground magma chamber caves in.

a)

caldera

b)

crater

c)

vent

17.

It is a fine grained rock formed when magma cools and hardens at the earth's surface. It means forced out

a)

extrusive

b)

intrusive

c)

fiery rock

18.

It means forced into or between a coarse-grained rock formed when magma cools and hardens while still underground.

a)

extrusive

b)

intrusive

c)

fiery rock

19.

It is a dark colored igneous rock composed mainly of plagioclase and pyroxene minerals.

a)

obsidian

b)

basalt

c)

granite

20.

It is a common intrusive rock that has a strong, light-colored rock that contains at least three different kinds of minerals.

a)

granite

b)

basalt

c)

pumice