Earth Science Mid Term Review 2022

Front

What is created when rocks are weathered?

Back

Sediment is created when rocks are weathered.

Front

What is the process called when layers of sediments collect at the bottom of the ocean?

Back

The process is called deposition.

Front

What is a compound?

Back

A compound is a substance made of two or more elements, like water (H2O).

Front

What is organic matter in soil made from?

Back

Organic matter in soil is made from decayed plants and animals.

Front

Name a decomposer.

Back

An example of a decomposer is an earthworm.

Front

What is weathering?

Back

Weathering is the process of breaking down rocks into smaller pieces.

Front

What is erosion?

Back

Erosion is the process of moving sediment from one place to another, often by water, wind, or ice.

Front

What is sediment?

Back

Sediment is small particles of rock and organic material that settle at the bottom of bodies of water.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that are not chemically bonded, while a compound is a substance formed when two or more elements are chemically bonded.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.