Chapter 5 - Earth Changes

Earth's Features

100

Deep valley with steep sides.  Usually a river runs through it.

Canyon

200

A large area of flat land.

Plain

300

Large bodies of salt water.

Oceans

400

How much water covers the Earth

3/4 (three/fourths)

500

This is a canyon on the ocean floor.

Trench

Layers of the Earth

100

This is the outermost, coolest layer of the Earth.  Continents are located here.

Crust

200

This is the deepest, hottest layer of the Earth, located at its center.

Core

300

The layer below Earth's crust

Mantle

400

Melted rock that flows out of a volcano

lava

500

Melted rock inside Earth's mantle and crust

magma

Sudden Changes to Earth

100

A mountain that builds up around an opening in Earth's crust.

Volcano

200

Sudden movement of plates on Earth's crust

Earthquake

300

An epic movement of rocks and soil down a hill

landslide

500

This can cause a sudden change to the land on Earth

Earthquake

Weathering and Erosion

100

The slow process of breaking down rocks into smaller pieces

Weathering

200

Movement of weathered rock, sometimes caused by moving water or wind

Erosion

400

Name three things that can cause erosion.

(1) water, (2) wind, (3) glaciers

500

Name four things that can cause weathering.

(1) Running water, (2) wind, (3) rain, (4) temperature changes

Landforms

100

This is the low land between hills or mountains.

Valley

200

Epic movement of rocks and soil down a hill.

Landslide

300

The seven great areas of land on Earth are called this.

Continents

400

This is land with steep sides and a flat top.

Plateau

500

A natural feature of land

landform