Rocks and Weathering Lessons

Which is an agent of Mechanical weathering?

• carbon dioxide
• acid rain
• oxygen
• freezing and thawing

Which process involves the removal of rock particles by wind, water, ice or gravity?

• oxidation
• chemical weathering
• erosion
• mechanical weathering

Which is an agent of chemical weathering that produces weak acids that dissolve rock?

• burrowing animals
• plant roots
• ice
• pressure

In which type of climate does chemical weathering occur fastest?

• hot and wet
• hot and dry
• cold and wet
• cold and dry

Scientists infer that ancient geologic features formed through the same processes they observe today based on the principle of ______________.

• uniformitarianism
• pressure
• rock
• permeable

The release of __________ / exfoliation from a rock is one example of an agent of mechanical weathering?

• permeable
• rock
• oxidation
• pressure

During ____________, iron combines with oxygen in the presence of water to form rust. 

• rock
• pressure
• oxidation
• mechanical

The type of _______________ and the climate determines the rate at which weathering occurs. 

• rock
• pressure
• oxidation
• uniformitarianism

_____________ weathering occurs when abrasion and other natural agents physically wear away rock.

• Chemical
• Weathering
• Mechanical
• Emotional

Rocks that are ______________ are full of connected air spaces and weather more easily. 

• rock
• permeable
• pressure
• mechanical