Quiz: Unit-3 Rocks


Unit-3 RocksOnline version Unit-3 Review by Thi Thi 1 Sedimentary rocks are primarily made from: a Cooled magma b Existing rocks changed by heat and pressure c Small pieces of other rocks stuck together d Minerals that have melted and formed new crystals 2 The process that continuously breaks up rocks into smaller pieces is called: a Erosion b Transport c Sedimentation d Weathering 3 Sandstone is a sedimentary rock that consists of: a Layers of shells b Fine-grained sediments c Sand grains stuck together d Melted and recrystallized quartz 4 What is another important characteristic of sedimentary rocks (besides forming in layers)? a They sometimes contain fossils. b They are always very hard. c They are formed by melting and cooling. d They have stripes or bands of crystals. 5 When the imprint of an animal in the sediments is left behind, this kind of fossil is called a: a Cast b Shell c Mould d Core 6 Limestone is typically made from layers of: a Magma b Shell of dead sea animals c Fine grey mud d Quartz sand grain 7 An important characteristic of all sedimentary rocks is that they always form in: a Very large crystals b Layers c A single, uniform color d Very hard, shiny surfaces 8 When limestone is heated, which metamorphic rock does it change into? a Quartzite b Shale c Marble d Gneiss 9 Metamorphic rocks that sometimes have many thin layers are formed mainly because of: a Melting b Solidification c Pressure d Erosion 10 Which metamorphic rock is formed when granite is heated and put under pressure, a Marble b Sandstone c Gneiss d Quartzite 11 What is the process that changes metamorphic rock back into magma, a Melting b Cooling c Sedimentation d Weathering and erosion 12 What are the actions that change sedimentary and igneous rock into metamorphic rock, according to the rock cycle? a Weathering and erosion b Melting c Burial, heat, and pressure d Cooling and solidification 13 Igneous rocks are formed from the solidification of a Sediments b Magma or Lava c Existing metamorphic rock d Mineral crystals 14 What is the name for molten rock found below the Earth's surface? a Lava b Sediments c Magma d Crystal 15 Intrusive igneous rocks (like granite) form when magma cools: a Quickly on the Earth's surface b Slowly below the Earth's surface c In the ocean d From sediments sticking together 16 Extrusive igneous rocks (like basalt) form when lava cools: a Slowly below the Earth's surface b Deep within the Earth's mantle c Under immense pressure d Quickly on the Earth's surface 17 What is the difference between magma and lava? a Magma is always dark; lava is always light. b Magma is molten rock underground; lava is molten rock on the surface. c Magma is molten rock on the surface; lava is molten rock underground. d Magma is liquid; lava is solid. 18 Igneous rocks that form when magma cools slowly beneath the Earth's surface are called: a Extrusive igneous rocks b Intrusive igneous rocks c Metamorphic rocks d Sedimentary rocks 19 Igneous rocks that form when lava cools quickly on the Earth's surface are called: a Extrusive igneous rocks b Granite c Metamorphic rocks d Intrusive igneous rocks 20 Which rock type weathers into clay soil? a Sandstone b Quartzite c Igneous rock d Shale 21 What characteristic of sandy soils allows water to drain through easily? a They are dark in color. b They have very small particles. c They have large spaces between the particles. d They are smooth and sticky. 22 Compost is beneficial to soil because it is made from dead organic matter and it performs two key functions: a Provides nutrients and dries out the soil. b Improves the texture and kills weeds. c Provides nutrients and improves the texture of the soil. d Kills insects and adds artificial chemicals. 23 Why is loam soil considered to have the best composition for growing plants? a It has no organic matter, making it very dry. b It is entirely made of large, rough sand particles. c It is made only of very tightly packed clay particles. d It is a mixture of sand and clay, which provides nutrients and enough air in the spaces. 24 Clay soils are "waterlogged" because they have: a Very large particles that let water drain easily. b A good mixture of sand and clay particles. c Very small particles packed tightly, which prevents water from draining through easily. d Lots of air in the spaces between the particles. 25 Which type of soil is described as being dark in color due to containing lots of organic matter? a Loam b Sandy soil c Clay soil d Gravel 26 What characteristic of sandy soils allows water to drain through easily? a They are dark in color. b They have very small particles. c They have large spaces between the particles. d They are smooth and sticky.

1

Sedimentary rocks are primarily made from:

a

Cooled magma

b

Existing rocks changed by heat and pressure

c

Small pieces of other rocks stuck together

d

Minerals that have melted and formed new crystals

2

The process that continuously breaks up rocks into smaller pieces is called:

a

Erosion

b

Transport

c

Sedimentation

d

Weathering

3

Sandstone is a sedimentary rock that consists of:

a

Layers of shells

b

Fine-grained sediments

c

Sand grains stuck together

d

Melted and recrystallized quartz

4

What is another important characteristic of sedimentary rocks (besides forming in layers)?

a

They sometimes contain fossils.

b

They are always very hard.

c

They are formed by melting and cooling.

d

They have stripes or bands of crystals.

5

When the imprint of an animal in the sediments is left behind, this kind of fossil is called a:

a

Cast

b

Shell

c

Mould

d

Core

6

Limestone is typically made from layers of:

a

Magma

b

Shell of dead sea animals

c

Fine grey mud

d

Quartz sand grain

7

An important characteristic of all sedimentary rocks is that they always form in:

a

Very large crystals

b

Layers

c

A single, uniform color

d

Very hard, shiny surfaces

8

When limestone is heated, which metamorphic rock does it change into?

a

Quartzite

b

Shale

c

Marble

d

Gneiss

9

Metamorphic rocks that sometimes have many thin layers are formed mainly because of:

a

Melting

b

Solidification

c

Pressure

d

Erosion

10

Which metamorphic rock is formed when granite is heated and put under pressure,

a

Marble

b

Sandstone

c

Gneiss

d

Quartzite

11

What is the process that changes metamorphic rock back into magma,

a

Melting

b

Cooling

c

Sedimentation

d

Weathering and erosion

12

What are the actions that change sedimentary and igneous rock into metamorphic rock, according to the rock cycle?

a

Weathering and erosion

b

Melting

c

Burial, heat, and pressure

d

Cooling and solidification

13

Igneous rocks are formed from the solidification of

a

Sediments

b

Magma or Lava

c

Existing metamorphic rock

d

Mineral crystals

14

What is the name for molten rock found below the Earth's surface?

a

Lava

b

Sediments

c

Magma

d

Crystal

15

Intrusive igneous rocks (like granite) form when magma cools:

a

Quickly on the Earth's surface

b

Slowly below the Earth's surface

c

In the ocean

d

From sediments sticking together

16

Extrusive igneous rocks (like basalt) form when lava cools:

a

Slowly below the Earth's surface

b

Deep within the Earth's mantle

c

Under immense pressure

d

Quickly on the Earth's surface

17

What is the difference between magma and lava?

a

Magma is always dark; lava is always light.

b

Magma is molten rock underground; lava is molten rock on the surface.

c

Magma is molten rock on the surface; lava is molten rock underground.

d

Magma is liquid; lava is solid.

18

Igneous rocks that form when magma cools slowly beneath the Earth's surface are called:

a

Extrusive igneous rocks

b

Intrusive igneous rocks

c

Metamorphic rocks

d

Sedimentary rocks

19

Igneous rocks that form when lava cools quickly on the Earth's surface are called:

a

Extrusive igneous rocks

b

Granite

c

Metamorphic rocks

d

Intrusive igneous rocks

20

Which rock type weathers into clay soil?

a

Sandstone

b

Quartzite

c

Igneous rock

d

Shale

21

What characteristic of sandy soils allows water to drain through easily?

a

They are dark in color.

b

They have very small particles.

c

They have large spaces between the particles.

d

They are smooth and sticky.

22

Compost is beneficial to soil because it is made from dead organic matter and it performs two key functions:

a

Provides nutrients and dries out the soil.

b

Improves the texture and kills weeds.

c

Provides nutrients and improves the texture of the soil.

d

Kills insects and adds artificial chemicals.

23

Why is loam soil considered to have the best composition for growing plants?

a

It has no organic matter, making it very dry.

b

It is entirely made of large, rough sand particles.

c

It is made only of very tightly packed clay particles.

d

It is a mixture of sand and clay, which provides nutrients and enough air in the spaces.

24

Clay soils are "waterlogged" because they have:

a

Very large particles that let water drain easily.

b

A good mixture of sand and clay particles.

c

Very small particles packed tightly, which prevents water from draining through easily.

d

Lots of air in the spaces between the particles.

25

Which type of soil is described as being dark in color due to containing lots of organic matter?

a

Loam

b

Sandy soil

c

Clay soil

d

Gravel

26

What characteristic of sandy soils allows water to drain through easily?

a

They are dark in color.

b

They have very small particles.

c

They have large spaces between the particles.

d

They are smooth and sticky.

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Unit-3 Rocks

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Unit-3 RocksOnline version

by Thi Thi

Sedimentary rocks are primarily made from:

The process that continuously breaks up rocks into smaller pieces is called:

Sandstone is a sedimentary rock that consists of:

What is another important characteristic of sedimentary rocks (besides forming in layers)?

When the imprint of an animal in the sediments is left behind, this kind of fossil is called a:

Limestone is typically made from layers of:

An important characteristic of all sedimentary rocks is that they always form in:

When limestone is heated, which metamorphic rock does it change into?

Metamorphic rocks that sometimes have many thin layers are formed mainly because of:

Which metamorphic rock is formed when granite is heated and put under pressure,

What is the process that changes metamorphic rock back into magma,

What are the actions that change sedimentary and igneous rock into metamorphic rock, according to the rock cycle?

Igneous rocks are formed from the solidification of

What is the name for molten rock found below the Earth's surface?

Intrusive igneous rocks (like granite) form when magma cools:

Extrusive igneous rocks (like basalt) form when lava cools:

What is the difference between magma and lava?

Igneous rocks that form when magma cools slowly beneath the Earth's surface are called:

Igneous rocks that form when lava cools quickly on the Earth's surface are called:

Which rock type weathers into clay soil?

What characteristic of sandy soils allows water to drain through easily?

Compost is beneficial to soil because it is made from dead organic matter and it performs two key functions:

Why is loam soil considered to have the best composition for growing plants?

Clay soils are "waterlogged" because they have:

Which type of soil is described as being dark in color due to containing lots of organic matter?

What characteristic of sandy soils allows water to drain through easily?