Weathering

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:

• ice wedging
• acid rain
• permeability
• abrasion

The natural chemical or physical processes that breaks down rock on Earth's surface.

• weathering
• erosion
• deposition
• jackhammering

You notice that rocks are bumping into other rocks in a river. When they do this, they break into smaller pieces called sediment. What process is being represented?

• Ice wedging
• Oxidation
• Lichen 
• Abrasion

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

The rate of weathering is determined by what 2 factors?

• Temperature and humidity
• Weather and plate tectonics
• Type of rock and humidity
• Temperature and deposition

How is mechanical weathering different from chemical weathering?

• Chemical weathering happens over much shorter time frame than mechanical weathering.
• Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.
• Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.
• Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.

Which rock was weathered for the LEAST number of years?

• Granite
• Marble
• Schist
• Sandstone

In which type of climate will weathering happen the fastest?

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

A student saw 2 pictures of a statue; one was taken 100 years ago and one was taken recently. What question should the student ask to determine what happened to the statue

• Did the iron in the statue oxidize in the statue and turn to rust?
• Did water get in the cracks of the statue and freeze causing weathering by ice wedging?
• Did the wind chemically change the composition of the statue made of granite?
• Did acid rain chemically change the composition of the statue made of granite?