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Earth’s Interior/ Continental Drift Convection Sea-Floor Spreading Plate Tectonics 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500

As you move from the center of the Earth to the crust, What is decrease? As you move from the center of the Earth to the crust, pressure does this. Row 1, Col 1

Energy transferred through empty space is called this. What is radiation? Energy transferred through empty space is called this. 1,2

beneath a deep-ocean trench. What is subduction? The process by which the ocean floor sinks beneath a deep-ocean trench. 1,3

Continental crust colliding boundary produces this. What is a mountain range? Continental crust colliding into continental crust at a convergent boundary produces this. 1,4

This hypothesis stated that the continents were What is continental drift? This hypothesis stated that the continents were once joined together in a single landmass. 2,1

The movement of Earth’s What are convection currents in the mantle? The movement of Earth’s plates is caused by this. 2,2

oceanic crust because of this. What is because it is cooler? Old oceanic crust is more dense than new oceanic crust because of this. 2,3

This theory states that What is the theory of plate tectonics? This theory states that Earth’s lithosphere is in constant motion. 2,4

What is lack of force that could move continents? Wegener’s idea of continental drift was rejected by his peers because of this. 3,1

in convection currents What is because heated material becomes less dense? Mantle material rises in convection currents because of this. 3,2

The North American plate are moving apart along this. What is the Mid-Atlantic Ridge? The North American plate and the Eurasian plate are moving apart along this. 3,3

continental plates pull apart at a spreading boundary What is a rift valley? On land, continental plates pull apart at a spreading boundary and form this. 3,4

moving from the inside out. What are inner core, outer core, mantle and crust? This is the order of Earth’s layers moving from the inside out. 4,1

The transfer of heat by the movement of heated material. What is convection? The transfer of heat by the movement of heated material. 4,2

crust to the ocean floor. What is sea-floor spreading? This process adds new crust to the ocean floor. 4,3

The asthenosphere helps What is the mantle? The asthenosphere helps make up this layer of Earth’s interior. 4,4

Oceanic plates are made up What is basalt? Oceanic plates are made up mostly of this material. 5,1

Convection currents take What are the outer core and the mantle? Convection currents take place in these two layers of the Earth. 5,2

Solidified in the ocean floor, these show the direction What are magnetic stripes? Solidified in the ocean floor, these show the direction of Earth’s magnetic field. 5,3

A continental plate collides What is a convergent plate boundary? A continental plate collides with an oceanic plate at this boundary. 5,4