FIRST SUMMATIVE TEST IN SCIENCE 5

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Layer that covers the entire surface of the Earth and the top component of the lithosphere.

• crust
• mantle
• core
• crush

It is the breaking down of rocks into fragments.

• Erosion
• Flooding
• Runoff
• Weathering

Main cause of soil formation.

• natural calamities
• temperature
• human activities
• weathering

A type of weathering that involves a change in the composition of the rock.

• Chemical
• Mechanical
• Both chemical and mechanical
• None of these

What do you call the process by which humans extract stones from the mountains for construction purposes?

• Digging
• Flattering
• Weathering
• Quarrying

What will happen to a rock when it is exposed to higher temperatures?

• Contracts
• Evaporates
• Expands
• Sinks

Which of the following is NOT a factor that causes chemical weathering?

• water
• open-field
• oxygen
• carbon dioxide

______________ are composed of various minerals that expand and contract.

• water
• rock
• clouds
• fire