6th Earth's Layers and Plate Tectonics

Front

Which layer of Earth is the thickest? Options: crust, outer core, mantle, inner core

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

What occurs as a result of convection currents?

Back

Tectonic plates on the crust move.

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

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.

Front

Oceanic crust is

Back

Thinner, younger and more dense than continental crust

Front

What happens to temperature as you go deeper in the Earth?

Back

increases

Front

Why does hot water float on top of cold water?

Back

hot water is less dense than cold water