4th Periodical Test in Science 5

It is the breaking down of rocks into fragments.

• Erosion

• Flooding

• Runoff

• Weathering

A type of weathering that involves changes in the composition of rocks.

• chemical

• mechanical

• both chemical and mechanical

• none of the above

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

• digging

• flattering

• weathering

• quarrying

What happens to rock when it is exposed to higher temperatures?

• contracts

• evaporates

• expands

• sinks

An open-pit mine where rocks can be extracted.

• landfill

• open-field

• reservoir

• quarry

A plant serves as the agent of weathering. Which of the following statements supports this idea?

• Branches of plants cause the rocks to break

• Decaying plants cause the rocks to break

• Falling leaves cause rocks to break

• Root of plants that grow in rocks and cause them to break

The process involved in the breaking of rock into pieces.

• deposition

• erosion

• sedimentation

• weathering

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

• Carbonation

• Erosion

• Hydrolysis

• Oxidation

The following human activities are caused by physical weathering, EXCEPT.

• Boating and fishing

• Building roads and tunnels

• Mining ores

• Acidic water in the river

What physical characteristic of rock refers to the color of its powdery materials?

• hardness

• shine

• malleability

• stripe