Science Chapter 4: Slow Changes on Earth

Freezing and thawing and plants in rocks can both cause...

Rock is broken down and moved to another place during the processes of

The biggest cause of erosion is flowing water.

A large mass of moving ice.

Oxygen, carbon dioxide, and acids all change rock chemically but not physically.

Plants can help conserve soil.

The transportation of weathered rock from one place to another.

A river can carve a deep, narrow valley called a

What is humus?

The carrying away of weathered rock is called

A hill formed by blown sand.

When oxygen in air dissolves in water that comes into contact with iron this can form.

The processes that change rock into smaller parts without changing the rock chemically.

Sand dunes are formed by

When a river reaches flat land, they slow and...

Deposition occurs when

Strip cropping is a way that farmers conserve soil.

The Dust Bowl was caused by severe storms and flooding.

What is an example of chemical weathering?

An area of land that forms at the mouth of a river.