Erosion is

Deposition is

Rain washing away soil from a hillside.

Layers of sediment forming at the bottom of the ocean.

A mudslide flowing down a steep hill.

Waves dropping sand on the beach

Caves being formed by acid rain dissolving underground limestone.

Water getting into cracks, freezing and breaking the rocks apart.

The process of rock changing from one type to another is called???

_____________contains weathered minerals and some nutrients from the humus.

_____________changes rocks into new substances.

____________occurs whenever rocks rub against each other.

The primary force behind erosion is gravity.

Sand is the smallest kind of particle in the soil that holds nutrients and water well.

A scientist that studies soil is called a soilologist.

Sand is the largest particle in soil that allows water to drain off quickly.

Stalactites hang from the ceiling of a cavern.

Bedrock is unweathered rock that influences the texture of the soil above it

An area of sediment at the mouth of a river is called a __________________.

The sediment carried by a stream is its ________________.

Which is NOT an agent of erosion?

Weathering and erosion can occur together.

Multiple layers of soil are called horizons.

The layer of soil that contains humus is called

The layer in which most plants grow is called

The layer that is made of solid, unweathered rock under layers of soil is called

Small bits of weathered rock and other material are called

Sediment that is deposited at the mouth of a river makes the mouth of the river

The moving of bits of weathered material from one place to another is called

The dropping of sediment in a new place is called

An area of sediment that builds up at the mouth of a river is called

Soil is made of

Two types of landforms are

Three things that can cause rocks to weather are

The three sizes of weathered rock found in soil are

Two kinds of sudden erosion caused by gravity are

occurs when water or wind gradually wears away rock by friction

the process of water in and around rocks and soil freezing and expanding, breaking up the rocks

the rapid downhill movement of a large amount of soil and rocks

a huge sheet of ice that stays frozen all year

a sudden downhill movement of a large amount of snow and ice

The process of breaking down rocks into smaller pieces is called

The soil layer that is mostly coarse, weathered rocks and does not contain humus is the

Volcanoes and earthquakes can push land

A moraine is a hill formed by a

______ where ponds and lakes form can be caused by glaciers.

_____ can pick up sediment and rocks.

Erosion _____ happens quickly.

Decayed plant and animal material in soil is called ______.

The breakdown of rock into smaller pieces because of wind, water, or ice

Moving sediment from one place to another

The dropping off of sediments in a new place.

The portion of the earth between the crust and the core

The outer layer of the earth containing the continents and the oceans

The central part of the earth

The process that changes the minerals that rocks are made of. This is a type of weathering

The breaking down of rocks caused by physical force

A body of rocks

Molten material on the earth’s crust

Molten material beneath the earth’s crust

A rapid landform change in which a large chunk of earth falls from its original position.

When a volcano lets off steam and other materials

A series of vibrations caused by movement in the earth's crust

what are some

physical features on the Earth's surface?

deep canyons and gorges are formed by ?