Structure of the Earth Continental Relief Coastal Relief Internal and External Forces of Relief
100
Oceans (Pacific, Atlantic, Indian, Southern, Arctic)
Vast masses of saltwater
100
Mountain
A high landform with steep sides; groups of these form ___ ranges
100
Cliffs
steep rock formations in high coastal areas
100
Continental drift
the theory that a super continent (Pangaea) broke up to form smaller continents millions of years ago
200
Magma
liquid rock
200
Valley
area of low land between mountains
200
Peninsula
An area of land mainly surrounded by water
200
Tectonic plates
Sections or blocks of the Earth's lithosphere that are constantly moving in relation to the other sections/blocks
300
Continents (Asia, America, Africa, Antarctica, Europe, Oceania)
Very large land masses surrounded by oceans and seas
300
Plain
low, flat areas of land
300
Island
An area of land surrounded by water on all sides
300
Volcano
A crack in the Earth's crust from which lava, ash and hot gases flow during an eruption
400
Increases
As you go deeper into the Earth, the temperature _____
400
Plateau
high, raised plains
400
Coast or shore
Area where the land meets the ocean
400
Tsunami
An earthquake on the ocean floor
500
Crust, mantle, and core
The Earth's three layers
500
Relief
Consists of all the features of the Earth's surface which make the terrain so varied
500
Gulf or bay
An area of the sea that’s partly surrounded by land
500
temperature, water, wind, human action
The four external forces on Earth's surface






Relief Unit Review

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