Apologia General Science Module 6

Front

Define humus

Back

Decayed remains of once living creatures.

Front

In which region do you expect the most erosion to occur: a region with few plants or a region covered with thick grass, flowers, and trees?

Back

The first region.

Front

What hypothesis allows for an earth that is just a few thousand years old: uniformitarianism or catastrophism?

Back

Catastrophism.

Front

What type of weathering occurs when an igneous rock laced with iron rusts and crumbles when exposed to water?

Back

Chemical weathering.

Front

Define unconformity.

Back

A surface of erosion that separates one layer of rock from another.

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by wind or water.

Front

What is the difference between physical and chemical weathering?

Back

Physical weathering breaks rocks into smaller pieces without changing their composition, while chemical weathering alters the minerals in the rock.

Front

What is sediment?

Back

Small pieces of rock, minerals, and organic material that are transported by wind or water.

Front

What role do plants play in preventing erosion?

Back

Plants help hold the soil in place with their roots, reducing the impact of wind and water.

Front

What is the rock cycle?

Back

The continuous process by which rocks are formed, broken down, and reformed over time.