Front

This layer of Earth is the thickest part.

Back

mantle

Front

What was the name given to all the continents when they were joined as one super continent?

Back

Pangea

Front

Which of these layers is ALL solid iron and nickel? Options: inner core, outer core, lithosphere, mesosphere

Back

inner core

Front

The layer that makes up most of the earth's mass and volume is the

Back

mantle

Front

Which of the following occurs because of convection currents? Tectonic plates on the crust move., The mantle increases in size., Pressure in the crust increases., Pressure in the crust decreases.

Back

Tectonic plates on the crust move.

Front

Scientists think that convection currents that move the plates flow in Earth's ______________.

Back

Asthenosphere

Front

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

Back

They would all decrease.

Front

The physical layer of Earth made of solid rock and soil is called the ___________.

Back

lithosphere

Front

Where does the heat come from that drives this convection current in the mantle?

Back

the core

Front

What does the theory of continental drift state?

Back

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