5.7A Sedimentary Rocks and Fossil Fuels

Front

What is erosion?

Back

Erosion is the movement of sediments from one place to another, often caused by wind, water, or ice.

Front

What is the oldest layer of sedimentary rock?

Back

The oldest layer of sedimentary rock is typically found at the bottom of a sequence of layers.

Front

What characteristic of sedimentary rock is shown by layers of sand and gravel?

Back

Sedimentary rock is made of layers.

Front

What do fossil fuels form from?

Back

Fossil fuels form from mostly decaying organisms that settled to the sea floor and formed marine mud.

Front

What is weathering?

Back

Weathering is the breaking down of rocks into smaller sediments.

Front

What is deposition?

Back

Deposition is the process where sediments settle and accumulate in a new location.

Front

What is compaction in sedimentary rock formation?

Back

Compaction is the process where sediments are pressed together under pressure, reducing the space between them.

Front

What is cementation?

Back

Cementation is the process where dissolved minerals crystallize and bind sediments together to form rock.

Front

What are sedimentary rocks primarily made of?

Back

Sedimentary rocks are primarily made of particles from other rocks, minerals, and organic materials.

Front

What is the role of water in the formation of sedimentary rocks?

Back

Water helps transport sediments and can also aid in the cementation process.