Earth’s Layers Review
Density
Composition
Thickness
Temperature
1
(least dense)
Rock
5-20 miles
20 ºC - 870 ºC
Mantle
2
Molten rock
1800 miles
870 ºC – 2,200 ºC
Outer core
3
Liquid
800 miles
2,200 ºC – 5,000 ºC
Inner core
4
(most dense)
Solid metal
1400 miles
5,000 ºC
Crust
The upper crust is made primarily of which type of rock?
- sedimentary
What are the five elements that make up 90% of earth’s crust?
- oxygen (50%), silicon, aluminum, iron and calcium
Which two elements are found in the inner and outer cores?
- iron and nickel
Be able to label the layers of the earth
- in order from outer to inner layer: crust, lithosphere, asthenosphere, mantle, outer
core, inner core
Density
- Definition: a property of matter representing the mass per unit volume
- AKA- the amount of “stuff” in a given space
- Example: limestone is more dense than water, that is why it sinks
Tectonic plates
- Solid and found in the lithosphere
- Move around on top of the asthenosphere
Be able to compare and contrast the lithosphere and asthenosphere, including
thickness, composition, temperature, and density. Tectonic plates should also be
mentioned.
Earth’s Layers Review
Density
Composition
Thickness
Temperature
Crust
Mantle
Outer core
Inner core
The upper crust is made primarily of which type of rock?
- _________________________
What are the five elements that make up 90% of earth’s crust?
- _______________________________________________________
Which two elements are found in the inner and outer cores?
- ___________________________
Be able to label the layers of the earth
- in order from outer to inner layer: _______________________________________
____________________________
Density
- Definition: a property of matter representing the mass per unit volume
- AKA- ___________________________________________________
- Example: ___________________________________________________________
Tectonic plates
- ___________________________________________
- ___________________________________________
Be able to compare and contrast the lithosphere and asthenosphere, including
thickness, composition, temperature, and density. Tectonic plates should also be
mentioned.
Earth’s Layers Review
Density
Composition
Crust
Thickness
Temperature
5-20 miles
20 ºC - 870 ºC
(least dense)
Mantle
Molten rock
Outer core
miles
800 miles
Inner core
Solid metal
miles
870 ºC – 2,200 ºC
2,200 ºC – 5,000 ºC
ºC
(most dense)
The upper crust is made primarily of which type of rock?
- ___________________________
What are the five elements that make up 90% of earth’s crust?
- oxygen (_____%), silicon, aluminum, iron and calcium
Which two elements are found in the inner and outer cores?
- iron and __________________
Be able to label the layers of the earth
- in order from outer to inner layer: crust, lithosphere, asthenosphere, mantle, outer
core, _____________________
Density
- Definition: a property of matter representing the mass per unit volume
- AKA- the amount of “stuff” in a given space
- Example: limestone is more dense than water, _________________________
Tectonic plates
- Solid and found in the _______________________
- Move around on top of the ____________________
Be able to compare and contrast the lithosphere and asthenosphere, including
thickness, composition, temperature, and density. Tectonic plates should also be
mentioned.