Landforms & Processes
Agents of Change
From Rocks to Soil
Human Impact
100

This is the process where rock is broken down but the pieces stay in place

 WEATHERING

100

This gas and liquid mixture that can carry tiny rock pieces and wear down surfaces is blown by the wind to cause change: name the agent

WIND

100

The term for melted rock under Earth’s surface is

MAGMA

100

Cutting down large areas of trees is called ______.

DEFORESTATION

200

A fan-shaped deposit of sediment that forms where a river slows and enters a larger body of water is called a ______

DELTA

200

What agent of change freezes into glaciers and causes erosion by scraping rocks?

ICE

200

Melted rock that flows out of a volcano is called ______.

LAVA

200

Dirty air, water, or soil caused by people is called ______.

POLLUTION

300

Tall piles of sand formed by wind are called ______.

DUNES

300

Name two agents that cause erosion (choose any two)

water, wind, ice, gravity

300

Rock formed from cooled lava is called ______ rock.

IGNEOUS

300

What helpful action saves and reuses materials, reducing pollution and waste?

RECYCLING

400

A huge sheet of moving ice that can shape valleys and carry rocks is called a ______.

GLACIER

400

When rainwater carries away topsoil from a farm, which agent of erosion is at work?

WATER

400

The term for when sediment is dropped and builds up is ______.

DEPOSITION

400

Name one way people might increase erosion (one short phrase).

Removing vegetation / Deforestation / Overfarming

500

What is the general term for when moving water, wind, ice, or gravity picks up and moves pieces of Earth’s surface?

EROSION

500

Describe how gravity can act as an agent of erosion

LANDSLIDE (or GRAVITY)

500

Explain in one sentence how weathering and deposition work together to change a landscape.

Weathering breaks rock into pieces; deposition drops those pieces so new landforms can form.

500

Suggest one realistic solution (one sentence) to reduce erosion on a hillside where trees were removed.

Plant trees or use mulch to hold soil in place.

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