Unit 2: Plate Tectonics Review

Front

What drives the movement of tectonic plates?

Back

Convection currents deep in the mantle.

Front

What causes Earth's tectonic plates to move?

Back

Convection currents in the mantle.

Front

What type of fossils did Wegener find on two different continents?

Back

Plants and animals.

Front

How do temperature, pressure, and density change from the inner core to the crust?

Back

They all decrease.

Front

What is the best evidence that continents were once connected?

Back

Matching rock types, fossils, and coastlines.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The semi-fluid layer beneath the lithosphere that allows tectonic plates to move.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where two plates move away from each other.