Plate Tectonics 8th grade

As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?

• They would all increase.

• They would all decrease.

• Temperature would increase, pressure would decrease, and density would remain the same.

• Temperature would decrease, pressure would increase, and density would decrease.

When Earth's plates rub or scrape against one another, the release of energy causes ...

• a volcanic eruption

• an earthquake

• a tsunami

• a landslide

What type of boundary creates a volcanic islands?

• convergent ocean ocean

• divergent ocean ocean

• transform boundary

• convergent continental continental

What type of boundary creates new seafloor?

• convergent oceanic/oceanic

• convergent ocean/continental

• divergent continental/continental

• divergent oceanic/oceanic

Magma is

• solid rock

• liquid rock

• gas

• plasma

What does the theory of continental drift state?

• The continents were once joined in a super-continent and have moved over time.

• The continents are fixed and do not move.

• The continents were formed by volcanic activity.

• The continents are slowly sinking into the ocean.

Name the boundary

• divergent boundary

• transform boundary

• convergent boundary

• subduction boundary

A subduction zone is formed...

• when one tectonic plate sinks below another.

• when two tectonic plates collide and push upwards.

• when tectonic plates slide past each other horizontally.

• when a tectonic plate breaks apart and creates a rift.

Who is the person credited with developing the theory of continental drift?

• Alfred Wegener

• Isaac Newton

• Charles Darwin

• Marie Curie

Continental plates colliding can create...

• valleys

• mountains

• plains

• islands