Changes in the Geosphere 1

Front

What is weathering in the context of the geosphere?

Back

Weathering is the process that breaks down rocks into smaller particles or sediments through physical, chemical, or biological means.

Front

How does weathering contribute to sediment formation?

Back

Weathering creates sediment by breaking down larger rocks into smaller particles, similar to how sugar cubes can be crushed into dust.

Front

What is erosion and how does it differ from weathering?

Back

Erosion is the movement of soil and rock particles from one location to another by wind, water, ice, or gravity, while weathering is the process of breaking down rocks.

Front

What factors increase the rate of erosion?

Back

Factors that increase erosion include steep slopes, fast-moving water, lack of vegetation, and human activities such as deforestation.

Front

What is deposition in the context of the geosphere?

Back

Deposition is the process by which sediments are laid down in new locations after being transported by erosion.

Front

What is the sequence of the three change agents in the geosphere?

Back

The sequence is weathering, erosion, and then deposition.

Front

How does the speed of a river affect erosion?

Back

A faster river increases the rate of erosion because it has more energy to transport sediment and erode the riverbanks.

Front

What role does gravity play in erosion?

Back

Gravity causes materials to move downhill, contributing to erosion through processes like landslides and rockfalls.

Front

What is the impact of vegetation on soil erosion?

Back

Vegetation helps to anchor soil in place, reducing the rate of erosion by preventing soil from being washed or blown away.

Front

What is a variable in an experiment, and why is it important to control it?

Back

A variable is a factor that can change in an experiment. Controlling variables ensures that the test is fair and that results are due to the factor being tested.