Vocabulary
Lesson 1: Planet Earth
Lesson 2: A Changing Earth
Lesson 3: Land and Water
Grab Bag
100

A large, continuous mass of land

Continent

100

The name given to the middle layer of the Earth

Mantle

100

The largest form of ice masses

Ice sheets

100

The name for water inside Earth's crust

Groundwater

100

The number of continents located on Earth

Seven
200

The average weather conditions in a region or area over a long period of time

Climate

200
The reason that Earth has seasons

The Earth's tilted axis

200

The two sources of sudden change on Earth's surface

Earthquakes and volcanoes

200

The place where most freshwater is located

Frozen in ice caps OR underground

200

The characteristic that is often used to describe landforms

Elevation

300

A long, narrow band of volcanoes that stretches for more than 24,000 miles around the Pacific Ocean

Ring of Fire

300

Name two of Earth's four major physical systems.

Hydrosphere, biosphere, lithosphere, atmosphere

300

A landform that is created when two tectonic plates come together

Mountains or trenches

300

The percent of the Earth that is freshwater

3%

300

The reason why the Sun's heat circles around the globe

Air and water currents

400

The process by which materials from Earth's surface are moved elsewhere by water, wind, or ice

Erosion

400

The composition of the inner core of Earth

Solid metal

400

Name three of the forces that can weather Earth's surface.

Wind, rain, chemicals, plants, moving ice, and flowing water

400

A flat landform that rises above the surrounding area

Plateau

400

The name of the deepest point in the ocean

Mariana Trench

500

A narrow strip of land connecting two larger land areas

Isthmus

500

The name given to the side of the mountain that faces away from the ocean (Hint: NOT rain shadow)

Leeward side of the mountain

500

The single greatest changing force on the Earth, especially in the last century or so

Human activity

500

Name the four types of bodies of freshwater.

Streams, rivers, lakes, and ponds

500

The name of the German scientist who first identified climate zones

Wladimir Koppen