Earth Science (WED) STAAR released items

Front

What is sedimentary rock?

Back

Sedimentary rock is a type of rock formed from the accumulation and compaction of mineral and organic particles.

Front

How does sediment become rock over time?

Back

The weight of overlying materials compresses the sediment, causing it to compact and eventually form rock.

Front

What is compaction in geology?

Back

Compaction is the process by which sediments are pressed together under pressure, reducing their volume and leading to the formation of sedimentary rock.

Front

What are the layers in sedimentary rock called?

Back

Strata.

Front

What is the significance of layers in sedimentary rock?

Back

Layers indicate the different periods of deposition and can provide information about the Earth's history.

Front

What is a landslide?

Back

A landslide is the movement of rock, earth, or debris down a slope due to gravity.

Front

What factors can trigger a landslide?

Back

Heavy rainfall, earthquakes, volcanic activity, and human activities can trigger landslides.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind or water.

Front

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

Back

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

Front

What is a model in science?

Back

A model is a representation of an object or system that helps explain how it works.