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Classifying Rocks

Authored by Jeannie Allen

Science

6th Grade

NGSS covered

Used 165+ times

Classifying Rocks
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Igneous rock forms in regions where –

rock is heated to melting point then cooled to a solid.
metallic minerals are put under extreme pressure.
a river deposits sand and mud over a long time.
evidence of organisms is becoming fossilized.

Tags

NGSS.MS-ESS2-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary process that turns sediments into sedimentary rocks?

Organisms walking on layers of sediment, pressing particles together tightly
Minerals within sediment, absorbing water, and undergoing a chemical reaction
Upper layers of sediment, pressing down on lower layers of deposited sediment
Magma cooling under the surface of Earth, crystallizing to form rock

Tags

NGSS.MS-ESS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Metamorphic rocks are different from igneous and sedimentary rocks in that metamorphic rocks form -

when liquid rock freezes into a solid.
by magma rising from Earth’s core.
from existing rock that has been changed.
by layering minerals of different sizes.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Scientists classify igneous, metamorphic, and sedimentary 
rocks based on their –

shape.
color.
formation.
usefulness.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three types of rocks?

Metamorphic, Sedimentary, Mineral
Metamorphic, Sedimentary, Igneous
Metamorphic, Igneous, Compaction
Metamorphic, Igneous, Cementation

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Geologists might recognize a metamorphic rock by distorted, wavy layers because they were caused by -

compaction and cementation.

melting and crystallizing.

erosion and deposition.

pressure and heat.

Tags

NGSS.MS-ESS2-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Igneous and sedimentary rocks could each be changed into metamorphic rock if they are changed by -

weathering.

pressure.

organisms.

cementation.

Tags

NGSS.MS-ESS2-2

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