EARTH'S LAYERS
CONVECTION AND THE MANTLE
CONTINENTAL DRIFT & PANGAEA
TECTONIC PLATE
PLATE BOUNDARIES
100

What is the outermost layer of Earth?

What is the crust?

100

What layer contains Earth’s convection currents?

What is the mantle?

100

What was the name of the ancient supercontinent?

What is Pangaea?

100

What are the massive pieces of Earth’s rocky outer shell called?

What are tectonic plates?

100

At which boundary do two plates move apart?

What is a divergent boundary?

200

Put these layers in order from surface to center: Inner Core, Crust, Mantle, Outer Core.

What are Crust → Mantle → Outer Core → Inner Core?


200

What happens to hot magma in the mantle?

What is it rises?

200

Which scientist proposed the theory of continental drift?

Who is Alfred Wegener?

200

Do tectonic plates fit closely together or have large spaces between them?

What is they fit closely together?

200

At which boundary do two plates slide horizontally past each other?

What is a transform boundary?

300

Which Earth layer is the least dense?

What is the crust?

300

What happens to magma when it cools?

What is it sinks?

300

According to continental drift, what happened to Pangaea?

What is it broke apart and the continents drifted apart?

300

What layer of Earth are the tectonic plates part of?

What is the lithosphere?

300

At which boundary do two plates collide?

What is a convergent boundary?

400

Which layer is directly underneath the crust?

What is the mantle?

400

What causes convection currents in the mantle?

What is heat from Earth’s core?

400

Name one piece of evidence that supports continental drift.

What are matching fossils or continents that fit together like a puzzle?

400

What causes tectonic plates to move?

What are convection currents in the mantle?

400

What can happen when two continental plates collide?

What is they can form mountains?

500

Which layer is a solid ball of iron and nickel at the center of Earth?

What is the inner core?

500

Convection currents act like what underneath tectonic plates?

What is a conveyor belt?

500

Why are similar fossils found on continents that are now separated by oceans important evidence?

What is they suggest the continents were once connected?

500

Tectonic plates can push together, pull apart, or do what third type of movement?

What is grind/slide past each other?

500

When an oceanic plate is forced beneath a continental plate, what is this process called?

What is subduction?

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