Composition
Liquid nickel and iron
The layer with the coolest temperature
What is the crust?
Earth's heat source
What is the core?
The lowest layer of the mantle.
What is the mesosphere?
Part of the mantle that moves with crust to form tectonic plates
What is the lithosphere?
Where rocks are found on Earth
What is the crust?
Why is the inner core solid?
What is extreme pressure?
The percent of Earth that is included in the crust?
What is only 1% of the mass of Earth?
Composition of the mantle
What is a layer of molten rock?
Which layers is cooler? the lithosphere or the asthenosphere?
What is the lithosphere?
The lithosphere floats on top of the _____________
What is the asthenosphere?
Geologists learn about Earth’s interior by studying __________________which move through Earth.
What is studying seismic waves
Solid nickel and iron
What is the inner core?
What is 33%?
Three layers of the mantle
What is the lithosphere, aesthenosphere and mesosphere?
Two types of crust
What are the oceanic and continental crust?
Increases as you go deeper into Earth.
What is density, temperature, and pressure?
How does density change with depth of Earth layers?
What is density increases the deeper into Earth?
Where convection currents are
What is the aesthenosphere (a layer in the mantle)?
Compare types of crust
Oceanic is thin but dense. Continental is thick but less dense.