Vocabulary
Structure of the Earth
Continental Drift Theory
Plate Tectonics
Miscellaneous
100

This phenomenon is when the world shakes due to a build-up in pressure in the plates

What is earthquake?

100

This is the layer of the planet that we live on.

What is the outer layer/crust/lithosphere?

100

Continental Drift Theory stated that...

What is the continents were once joined together and have now separated?

100
This jagged line is formed where two plates meet.

What is a plate boundary?

100

Plates move at an incredibly slow rate, around ...

What is 1-3 cm/year?

200

Scientists can study the Mesosaurus and other dinosaurs by investigating these items.

What are fossils?

200

The Earth's outer layer is broken into these large chunks.

What is plates?

200

This man was the first person to propose Continental Drift Theory.

Who is Alfred Wegner?

200
These two phenomenon are common at BOTH converging and diverging plate boundaries.

What are earthquakes and volcanoes?

200

These are the large pieces of land that extend above the ocean. (hint. there are seven)

What are continents?

300

This layer of Earth is below the plates.

What is the mantle?

300

This layer of Earth flows and has convection currents that move its soft, solid material.

What is the mantle?

300

Evidence of tropical plants were discovered on this icy continent.

What is Antarctica?

300
This hot molten rock can be discovered below the Earth's crust.

What is magma?

(No, lava is not correct)

300

How long does it take for plates to move long distances?

What is millions of years?

400
The word for when two things move in opposing directions.

What is divergent?

400

This part of the Earth, which is located underneath the mantle, is made of liquid metal

What is the outer core?

400

This new evidence helped scientists prove Continental Drift Theory, years after Wegner had passed.

What is seafloor spreading?

400
When plates diverge deep in the ocean, this landform may be created.

What is a mid-ocean ridge?

400

This term can apply to measuring cars, height, runners, and plate movement.

What is rate?

500

When plates move in this way, a landform such as a trench might be created.

What is convergent?

500

This part of the Earth is made of solid metal. It is the furthest you can go into the planet.

What is the inner core?

500

These two pieces of evidence about the continents led to the creation of Continental Drift Theory.

What is ...

1. the edges fit together like puzzle pieces?

2. fossil patterns matched across continents?

3. similar rock and land was discovered?

500

This mechanism causes plates to move.

What is convection currents in the mantle?

500

What can scientists use to view the inside layers of an object?

What is a cross section?