Unit 6: Earth Systems and Plate Tectonics Test Review

Which best explains the difference between lava and magma?

The fuel behind the motion of the plates is a heat transfer known as

Mountains form at _____boundaries.

Which of the following can provide a hint as to what the weather was like during Earth’s past?

Volcano that is currently erupting or is likely to erupt; they have erupted in the recent past.

Which of the following is evidence of Pangaea?

An opening or vent in Earth's crust that allows hot magma, ash and gases to escape

What is the energy from the sun known as?

If two plates are crashing into each other, we call them

There are ______ major plates on the lithosphere.

A crack in Earth’s interior where earthquake energy is released is a ____________.

How we get new oceanic crust along a ridge and the old oceanic crust gets pushed away ?

A volcano that still could erupt, but has not done so in a very long time.

Warm substances

Cooler substances

The tool use to measure the strength/magnitude of an Earthquake is

Which natural disaster needs to happen for a tsunami to occur?

If the plates move side-to-side of each other they are called

Which best describes the epicenter?

It surrounds the Pacific Ocean and is home to 75% of the active and dormant volcanoes on Earth

Convection Currents occur in what layer of the earth?

The theory that the Earth’s plates are in constant motion on Earth’s surface.

If the two plates are moving away from each other they are called

Volcano that is considered unlikely to erupt again; it has no more magma supple.

Subduction occurs when oceanic crust collides with continental crust. What is happening?