EARTH'S SPHERES
INSIDE THE EARTH
PLATES ON THE MOVE
SHAPING THE SURFACE
LANDFORMS & WATER
100
This is the layer of gases that surrounds Earth.
What is the atmosphere?
100
This is Earth's outermost layer.
What is the crust?
100
These are sudden, violent movements of Earth's crust.
What are earthquakes?
100
This is the breaking down of rocks and other materials on Earth's surface.
What is weathering?
100
This large, relatively flat area is elevated above the surrounding landscape and is sometimes called a tableland.
What is a plateau?
200
This sphere includes all the water on Earth.
What is the hydrosphere?
200
This layer of hot, solid material lies between Earth's crust and core.
What is the mantle?
200
These are breaks in Earth's crust where two pieces of land have moved in different directions.
What are faults?
200
This process moves broken-down material from one place to another by wind, water, or ice.
What is erosion?
200
This landform is a broad, level expanse with no visible elevation.
What is a plain?
300
This solid, outer layer of Earth consists of the crust and the rigid upper part of the mantle.
What is the lithosphere?
300
This molten rock flows because of intense pressure and temperature.
What is magma?
300
This theory states that the lithosphere is made up of moving plates.
What is plate tectonic theory?
300
Glaciers sweeping away material and carving U-shaped valleys is this process.
What is glaciation?
300
This is a river or stream that flows into a larger river or lake.
What is a tributary?
400
This sphere consists of all life on Earth and every place where life exists.
What is the biosphere?
400
This is the central part of Earth, below the mantle.
What is the core?
400
This hypothesis says the continents once formed a single landmass, broke up, and drifted to their present locations.
What is continental drift?
400
This word means a violent upheaval or change in Earth's crust.
What is a cataclysm?
400
A river and all of its tributaries make up this.
What is a river system?
500
The atmosphere, lithosphere, hydrosphere, and biosphere together make up these.
What are Earth's four spheres?
500
This is the process of heat transfer in the mantle as moving particles carry thermal energy from place to place.
What is convection?
500
In this process, thinner, denser oceanic crust slides down and under less dense continental crust.
What is subduction?
500
This belief says only the forces acting on Earth today have shaped Earth in the past.
What is uniformitarianism?
500
This is all the land drained by a river system.
What is a drainage basin?
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