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Science 5 Review

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

The breaking down of rocks and other materials on the Earth's surface is known as _____.

a)

Erosion

b)

Decomposition

c)

Deposition

d)

Weathering

2.

What is the process that picks up and transport weathered rocks?

a)

Erosion

b)

Deposition

c)

Landslide

d)

Weathering

3.

Which of the following agents of "weathering" seeps in through cracks on
fissures in the rocks?

a)

Animals

b)

Temperature

c)

Water

d)

Wind

4.

What types of changes occur during the weathering process?

a)

Chemical change

b)

Physical change

c)

Chemical change and Physical change

d)

None of the above

5.

What process happens when rocks break down due to reaction with water,
carbon dioxide, oxygen and organic acids?

a)

Biological Weathering

b)

Chemical Weathering

c)

Electrical Weathering

d)

Mechanical Weathering

6.

Which of the following tends to cause physical or mechanical weathering?

a)

Animal that burrows in the ground .

b)

Root of plants growing into the cracks in the rocks

c)

Water that seeps into the pores and cracks of rocks

d)

All of these

7.

Which of the following occurs when acidic water caused the rocks to break
producing clay and soluble salts?

a)

Carbonation

b)

Erosion

c)

Hydrolysis

d)

Oxidation

8.

The following human activities are causes of physical weathering, EXCEPT:

a)

Mining ores

b)

Quarrying rocks

c)

Boating and fishing

d)

Building roads and tunnels

9.

How does temperature weather rocks?

a)

Rocks are at different temperature.

b)

Rocks are heated greatly all the time.

c)

Rocks are cooled tremendously all the time.

d)

Rocks are heated and cooled continuously.

10.

Plant serves as agents of weathering. Which of the following statements
support this idea?

a)

Falling of leaves causes rocks to break.

b)

Decaying trunks of plants cause the rocks to break.

c)

Roots of plants that grow in rocks cause them to break.

d)

Branches of plants cause the rocks to break when blown by the winds.

11.

A boulder of shore is slowly broken apart by the force of water.

a)

mechanical weathering

b)

chemical weathering

c)

biological weathering

12.

Earthworms make tunnels in the ground which may lead to the breakdown of
stones and rocks.

a)

mechanical weathering

b)

chemical weathering

c)

biological weathering

13.

Some plants release chemicals which loosen the rocks and cause them to break.

a)

mechanical weathering

b)

chemical weathering

c)

biological weathering

14.

Water inside the rocks freezes and melts again.

a)

mechanical weathering

b)

chemical weathering

c)

biological weathering

15.

The chemical composition of rocks changes when acid is produced by the roots of
some plants.

a)

mechanical weathering

b)

chemical weathering

c)

biological weathering

16.

It is the third planet from the sun and the only known astronomical object
to have life on it.

(a)  

17.

Physical wearing away of rocks.

(a)  

18.

The breaking down of rocks that result in the formation of soil and different
landforms.

(a)  

19.

It is a combination of one or more minerals that are naturally formed and
found on the surface or beneath the surface of earth.

(a)  

20.

A form of weathering which happens when rocks break down due to reaction
with water, carbon dioxide, oxygen, and organic acids.

(a)