6.ESS.2 Lesson Review

Front

What is compaction in geology?

Back

Compaction is the process where layers of sediment build up and exert pressure on the layers below, causing them to become denser.

Front

Define weathering.

Back

Weathering is the natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks.

Front

What does subsidence mean?

Back

Subsidence is the sinking of regions of Earth’s crust to lower elevations.

Front

Explain erosion.

Back

Erosion is the process by which water, ice, or gravity transport soil and sediment from one location to another.

Front

What is an igneous rock? Give an example.

Back

An igneous rock is formed from cooled magma or lava. An example is pumice.

Front

What is deposition in the context of geology?

Back

Deposition is the process where sediment is laid down in new locations after being transported by erosion.

Front

What role does weathering play in the rock cycle?

Back

Weathering breaks down rocks into smaller particles, which can then be transported and deposited, contributing to the rock cycle.

Front

What is the difference between erosion and weathering?

Back

Weathering is the breakdown of rocks, while erosion is the movement of those broken particles from one place to another.

Front

What is the significance of sediment layers in geological studies?

Back

Sediment layers provide information about Earth's history, including past environments and climate changes.

Front

How does gravity contribute to erosion?

Back

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