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rocks 6th grade

Total questions: 17

Worksheet time: 13mins

Name
Class
Date
1.

how is a igneous rock formed

a)

sediments compacting

b)

lava or magma cooling

c)

being subjected to intense heat and pressure

d)

getting wet

2.

how is sedimentary rocks formed

a)

lava or magma cooling

b)

being subjected into intense heat and pressure

c)

sediments compacting against each other

d)

being 2 million years old

3.

how is metamorphic rock formed

a)

being subjected into intense heat and pressure

b)

sediments compacting

c)

lava or magma cooling

d)

braking rocks

4.

obsidian

a)

metamorphic

b)

super

c)

sedimentary

d)

igneous

5.

sandstone

a)

sedimentary

b)

igneous

c)

metamorphic

6.

marble

a)

igneous

b)

metamorphic

c)

sedimentary

d)

oogo

7.

granite

a)

sedimentary

b)

metamorphic

c)

chicken

d)

igneous

8.

slate

a)

metamorphic

b)

igneous

c)

sedimentary

9.

When rocks are changed from one type to another, this is referred to as

a)

metamorphism

b)

sea floor spreading

c)

the rock cycle

d)

compaction

10.

Rocks are classified based mainly on their

a)

mineral content.

b)

grain size.

c)

method of formation.

d)

texture and shape.

11.

When shale rock is exposed to heat and pressure deep under Earth's surface for thousands of years, it forms into slate. What type of rock is slate?

a)

igneous

b)

metamorphic

c)

sedimentary

d)

extrusive

12.

Nora was on a vacation in Hawaii and decided to study some rocks. What type of rock is Nora most likely to find while on an Island in Hawaii?

a)

She will find mainly igneous rock, because Hawaii has and was formed by active volcanoes.

b)

She will find mainly metamorphic rock, because Hawaii always has high temperatures.

c)

She will find mainly sedimentary rock, because Hawaii has a large amount of organic plant matter.

d)

She will find mainly sedimentary rock, because Hawaii has high winds and ocean currents.

13.

The wearing away of rocks is a description of which process?

a)

Erosion

b)

Drainage

c)

Weathering

d)

Infiltration

14.

The best answer to what weathering involves is the

a)

transport of rocks and minerals through wind.

b)

physical and chemical breakdown of rocks.

c)

movement of rock fragments at Earth's surface.

d)

formation of rocks and minerals at Earth's crust.

15.
Plate motions resulting in the folding and faulting of rock under high pressures can create ________ rock.
a)
igneous
b)
sedimentary
c)
metamorphic
16.
Identify a rock that appears to have layers containing some fossils and small rocks all cemented together.
a)
sedimentary
b)
metamorphic
c)
igneous
17.
Rocks with pitting, glassy textures, and crystals are likely
a)
metamorphic
b)
sedimentary
c)
igneous