Vocabulary
Structure of Earth
Plate Tectonics
Boundaries
Random
100

The thinnest layer of Earth 

What is the crust? 

100

There are __________ many layers of the Earth.

What is four? 

100

Earthquakes and Volcanoes are usually located in relation to these. (Not specific) 

What is a plate boundary?

100

Two boundaries that come together 

What are convergent boundaries? 

100

Boundaries that slide pass one another 

What are transform boundaries? 

200

Although the hottest layer of Earth's surface, this layer is solid metal.

What is the inner core?

200

The thickest layer of the Earth? 

What is the Mantle? 

200

Hot air or liquid is less ________________ than cool air or liquid

What is dense? 

200

Boundaries that move away from one another 

What are divergent boundaries? 

200

Two types of crust 

What is oceanic and continental crust? 

300

Rigid, but moving pieces of Earth's surface

What are tectonic plates?

300

Layer of Earth that is liquid

What is the outer core? 

300

This is the mechanism (what causes) the plates to move

What are convection currents? 

300

All boundaries form this phenomenon that can destroy buildings. 

What are earthquakes?

300

Which layer of Earth is responsible for creating our magnetic field? 

What is the outer core? 

400

A break in Earth’s crust along which rocks move

What is a fault? 

400

Plates float on top of the __________________? 

What is the Asthenosphere?

400

When two continental plates collide, the edges of the continents are pushed upward to form a _________________.

What is a mountain range? 

400

Type of plate boundary that creates mountains

What are convergent boundaries? 
400

When two plates collide, the __________ plate always ends up on top. 

What is less dense?

500

The name of the single landmass that began to break apart 200 million years ago

What is Pangea? 

500

The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)

What is the lithosphere? 

500

Created the Continental Drift Theory

Who is Alfred Wegener?

500

Mid-ocean rigid is a location of _______________ type of boundary 

What is divergent? 

500

A plate sinking below another plate 

What is subduction? 

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