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[Pages:2]Weathering of Rocks & Soil Formation

Earth Sci

Name ____________________________ Class __________________ Date ____________

1 Which of the following is an example of the

chemical weathering of rock? Circle the answer letter.

a. freezing and thawing b. acid rain c. blowing sand

6 Fill in the blank.

Some rocks and minerals weather faster than others, such as limestone weathering faster than granite or basalt. This is known as

______________________________.

2 Which of the following is an example of the

mechanical weathering of rock?

a. burrowing animals

7 As water moves down

through a soil horizon, it dissolves minerals and other

b. acid rain c. oxidation

substances from the upper layers and moves them downward. This process is

called _______. Circle it.

3 Roots and trees can

mechanically weather

slumping leaching

erosion

granite bedrock. Is this

true or false and why?

8 Soil is important for all of these

a. true; roots have a strong acid in their

reasons except _______.

tips that dissolves rock

a. it is an important source

b. true; as roots and tree trunks grow

of ores like iron ore

larger, they can push rocks apart

b. it is a source of nutrients

c. false; rock is simply too hard to be

for plants and animals

moved by any plant

c. it stores large amounts of water

4

Please Sign In or Sign Up dt.oit isdhoouwsinnglfooramdany organisms

In reference to weathering, which of the

following dtehsceribpesrtihnettearmblaebravseiorns? ion of this worksheet

a. elements, such as iron, combine with oxygen to form an oxide

b. precipitation containing acid eats away

9 The group of practices used to preserve

topsoil and ensure its long-term use is called _______.

at rocks and metals

a. terracing

c. mechanical weathering of rock occurs

b. crop rotation

when rocks bang into each other

c. soil conservation

5 Name the soil horizon that

contains partially broken up bedrock and very low amount of nutrients.

A horizon B horizon C horizon

Bedrock

10 What is the part of soil

composed of decayed biological matter called?

residual soil bedrock

humus

? Copyright MMXVI NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to make copies for non-commercial educational purposes only. Visit us at

Weathering & Soil Formation - Answer Key

Earth Sci

Name ____________________________ Class __________________ Date ____________

1 Which of the following is an example of the

chemical weathering of rock? Circle the answer letter.

a. freezing and thawing b. acid rain c. blowing sand

6 Fill in the blank.

Some rocks and minerals weather faster than others, such as limestone weathering faster than granite or basalt. This is known as

_____d_if_f_e_r_e_n_t_ia__l _w_e__a_t_h_e_r_in__g____.

2 Which of the following is an example of the

mechanical weathering of rock?

a. burrowing animals

7 As water moves down

through a soil horizon, it dissolves minerals and other

b. acid rain c. oxidation

substances from the upper layers and moves them downward. This process is

called _______. Circle it.

3 Roots and trees can

mechanically weather

slumping leaching

erosion

granite bedrock. Is this

true or false and why?

8 Soil is important for all of these

a. true; roots have a strong acid in their

reasons except _______.

tips that dissolves rock

a. it is an important source

b. true; as roots and tree trunks grow

of ores like iron ore

larger, they can push rocks apart

b. it is a source of nutrients

c. false; rock is simply too hard to be

for plants and animals

moved by any plant

c. it stores large amounts of water

4

Please Sign In or Sign Up dt.oit isdhoouwsinnglfooramdany organisms

In reference to weathering, which of the

following dtehsceribpesrtihnettearmblaebravseiorns? ion of this worksheet

a. elements, such as iron, combine with oxygen to form an oxide

b. precipitation containing acid eats away

9 The group of practices used to preserve

topsoil and ensure its long-term use is called _______.

at rocks and metals

a. terracing

c. mechanical weathering of rock occurs

b. crop rotation

when rocks bang into each other

c. soil conservation

5 Name the soil horizon that

contains partially broken up bedrock and very low amount of nutrients.

horizon C

A horizon B horizon C horizon

Bedrock

10 What is the part of soil

composed of decayed biological matter called?

residual soil bedrock

humus

? Copyright MMXVI NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to make copies for non-commercial educational purposes only. Visit us at

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