Earth's Layers
Plate boundaries
Tectonic Plates
Continental drift
100
The thinnest layer of the Earth.
What is the crust?
100

Plate boundary where plates are moving past each other.

What are conservative plate boundaries?

100

The process of the mantle heating and rising to the surface and and then cooling and falling to the middle of the Earth?

What are convection currents?

100

The name of the two super continent formed 200 million years ago.

What is Pangea?

200

The thickest layer of the Earth.

What is the mantle?

200

Boundary where plates are moving away from each other.

What is a divergent boundary?

200

The parts that make up the lithosphere.

What are the crust and the solid part of the mantle?

200

The theory that all continents were all together and have since moved apart

What is Continental Drift Theory?

300

The molten metal layer of the Earth.

What is outer core?

300
Type of boundary where both earthquakes and volcanoes form.
What are convergent boundaries?
300

The two types of crusts...

What are oceanic crust and continental crust?

300

4.5 billion years

What is the age of the Earth?

400

It is solid, hot, ball of metal

What is the inner core?

400

Type of boundary that causes earthquakes but not usually volcanoes.

What are conservative plate boundaries?

400

The name of the tectonic plate that Australia rests on.

What is the Indo-Australian Plate?

400

The names of the two continents that split from Pangea.

What are Laurasia and Gondwanaland?

500

Earth's layer between the lithosphere and the lower mantle.

What is the asthenosphere?

500

Where new oceanic crust is formed because of the cooling of the mantle?

What is constructive plate boundaries?

500

One ways that scientists know about the Earth's interior.

What are rock samples and seismic waves?

500

The name of the body of water that separated Gondwanaland and Laurasia

What is Tethys Sea?

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