RP 2-3 (Plate Tectonics)

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together in a single landmass.

Front

What evidence supports the theory of continental drift?

Back

Fossils of the same land animals found on separate continents, glacier evidence in tropical regions, and matching coastlines of continents.

Front

Which is NOT evidence of continental drift?

Back

Igneous rocks found in many locations on Earth.

Front

What are convection currents?

Back

The movement of fluid caused by differences in temperature and density, which can drive plate tectonics.

Front

In convection currents, what happens to less dense fluids?

Back

They rise.

Front

In which layer of the Earth do convection currents occur?

Back

Mantle.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact at their boundaries.

Front

What type of plate boundary occurs when tectonic plates move away from each other?

Back

Divergent boundary.

Front

What type of plate boundary occurs when tectonic plates collide?

Back

Convergent boundary.

Front

What type of plate boundary occurs when tectonic plates slide past each other?

Back

Transform boundary.