Science
Trimester 3
Gr5
Name:_____________
Grade:____________
Unit8
Changes to Earth’s surface
A-Write the scientific term that matches with each of the corresponding
sentences.
(Weathering – Deposition – Erosion – Landform – Sediment – Arch –
Canyon)
1- It’s the process in which rocks break apart
(
)
2- The process of moving weathered rocks from one place to another.
(
)
3- The small bits of rocks that are carried by slow moving water.
(
)
4- The dropping of weathered rock by moving water.
(
)
5- It’s formed when sea waves cut through a shoreline cliff. (
)
6- It’s formed when river water cuts a path into rocks.
)
(
7- A natural land shape that’s formed by weathering and erosion.
(
B- Short answers:
1- What are the factors that cause weathering?
A-___________________
B-___________________
C-___________________
1
)
B- Structures and figures.
1- Look at the following landforms then write the name and weathering factor
responsible for each one.
a-
_________________________________________________
b-
__________________________________________________
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c_____________________________________________________
2-The following figures show different factors that cause weathering. Determine
which factors cause slow change and which factors cause a rapid change.
Root weathering
__________________
Volcano
___________________
Ice weathering
________________
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Earthquake
_______________
D-Choose the correct answer:
1- How is a sea arch formed?
a- By the fast moving rivers.
b- By the weathering action of ocean waves.
c- It happens due to chemicals from factories.
d- None of the above.
2- Which of the following is/are correct about landforms?
a- They happen due to the weathering effect of wind and water.
b- They can be formed slowly or fast according to the weathering factor.
c- Sand dunes are an example of landforms.
d- All of the previous.
3- Which of the following descriptions match with weathering?
a- It’s the breaking of rocks into smaller units.
b- It’s the dropping of the weathered rocks by wind or water.
c- It’s the settling of fine sand and dust particles.
d- Weathering process is caused by physical and chemical factors.
4- What process causes the weathered rocks to move from one place to
another?
a- Weathering
b- Deposition
c- Erosion
d- Sedimentation
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5- What is the landform formed by the river water?
a- Glaciers
b- Sea arch
c- Sand dunes
d- Canyons
6- Plants play an important role in protecting soil and preventing erosion.
Which of the following helps in preventing soil erosion?
a- Plants keep moisture in the soil and hold particles together.
b- The roots of plants grow in a small crack in a rock .
c- A growing plant may enlarge the cracks in the rocks forcing it to break
apart.
d- None of the previous.
7- Which of the following is correct about Delta formation
a- Water enters the cracks in the rocks and breaks them apart.
b- It’s formed by the fast moving river water
c- A river erodes sediment and carries it downstream until it deposits at
the mouth of the river.
d- The acidic rain makes erosion to the land at the mouth of the river.
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E-The following diagram shows a monument , Its edges are worn
away and smoothed down.
This process in which some parts of the statue are broken known as (Weathering erosion -deposition)
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