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How We Classify Rocks

Total questions: 15

Worksheet time: 2hrs 55mins

Name
Class
Date
1.

What are the 3 major types of rocks?

a)

Igneous, Metamorphic, Sedimentary

b)

Metamorphic, Igneous, Cementation

c)

Brown, Red, Gray

d)

Streak, Hardness, Breakage

2.

Sedimentary rocks form deep within the Earth.

a)

TRUE

b)

False

3.

Extreme Heat and Pressure creates a _________ rock.

a)

Igneous

b)

Metamorphic

c)

Sedimentary

d)

Mineral

4.

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

5.

The remains of living things that died long ago and their fossils are often found in what type of rock?

a)

igneous rocks

b)

sedimentary rock

c)

metamorphic rock

d)

all rocks

6.

Sedimentary rocks are formed by

a)

Cooling of lava or magma

b)

Heat and pressure

c)

Compacting and cementing

7.

What is the breaking down of rocks?

a)

Weathering

b)

Clastic

c)

Vesicular

8.

Sedimentary rock is formed when grains of sediment undergo

a)

metamorphism

b)

compaction and cementation

c)

melting

d)

solidification

9.

Volcanic activity on Earth’s surface most likely results in the formation of which of the following types of rock?

a)

Mineral

b)

Igneous

c)

Sedimentary

d)

Rocks don't form like this

10.

Ricardo has an igneous rock in his rock collection. Where did this rock most likely form?

a)

in a volcano

b)

on a forest floor

c)

on a coral reef

d)

at the bottom of a river

11.

When tremendous heat and pressure is applied to sandstone deep within the Earth's crust, marble forms. It is a _____ rock

a)

sedimentary

b)

igneous

c)

mineral

d)

metamorphic

12.

This rock was another type of rock that was heated and compressed over time. What type of rock is this?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

13.

In order for a metamorphic rock to form, _______ is/are needed.

a)

Pressure

b)

Heat

c)

Heat and Pressure

d)

Weathering

14.

This rock started as molten magma. What type of rock is this?

a)

Sedimentary

b)

Igneous

c)

Metamorphic

15.

Rock that forms when pressure and temperature change existing rock.

a)

Igneous Rock

b)

Sedimentary Rock

c)

Metamorphic Rock

d)

Mineral Rocks