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WorksheetsWeathering in Rocks
Total questions: 10
Worksheet time: 5mins
Rocks continuously break into small pieces over the years. This process is called (1) (a) .
The two main types of weathering are (2) __________ and (3) __________.
(a)
Mechanical weathering is caused by factors such as water, wind, temperature, humans, plants, and (4) (a) .
Chemical weathering occurs when carbon dioxide in air combines with water forming (5) (a) . This acid attacks and dissolves mineral called calcite. Rocks made up of calcite can be broken down this way.
5. Rocks that are made of _________ can be broken
down when carbon dioxide in air combines with
water to form carbonic acid.
A. acid
B. calcite
C. iron
D. rust
6. What is the color of the surface of rocks that undergo
combination of oxygen and iron that makes them weak?3
A. black
B. gray
C. rusty-colored
D. white
7. It is a place where stones are extracted by humans.
A. open field
B. quarry
C. reservoir
D. road
8. One example of mechanical weathering is when animals ______.
A. dig the soil.
B. die on the rocks.
C. break the concrete roads.
D. walk on the surface of rocks.
9. What is formed when carbon dioxide combines with water?
A. carbonic acid
B. iron
C. oxygen
D. rust
10. What will happen to a rock when it is exposed to higher temperature?
a. contracts
b. evaporates
c. expands
d. sinks
