Share Unit 1 Review: Layers of the Earth
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Name the 4 layers of the Earth. Start with the outermost layer (the surface) and then move in towards the center of the Earth.
Crust, mantle, outer core, inner core
What are the two types of crust?
oceanic crust and continental crust
In what layer of the Earth is magma found?
the mantle
Name the 2 layers of the Earth where convection currents are found.
the mantle and the outer core
The circular movement of hot rock in the mantle which is responsible for moving the tectonic plates above are known as what?
the convection currents
What layer of the Earth is the ONLY liquid layer of the Earth?
the outer core
The convection currents in this layer help to create Earth's magnetic field. Which layer is it?
the outer core
The densest and the hottest layer of the Earth is the ______________.
the inner core
What two layers of the Earth are made up of metal (iron and nickel)?
the outer core and the inner core
As you travel deeper into the center of the Earth, what happens to temperature and pressure?
temperature and pressure increase
What do scientists use to help them know what the inside of the Earth looks like?
Scientists use seismic waves. Seismic waves are the shock waves of earthquakes.
the measure of mass per volume is known as _______________.It tells us how tightly packed atoms are together in a substance.
density
What is the density of water? (include the units in your answer)
1 g/mL
Dense things will SINK. (true or false)
True. Dense things will sink.
If something is less dense, will it float or will it sink?
less dense things will float.
As you travel towards the center of the Earth, density increases. So which layer is the densest layer?
the inner core
