Download layers of the earth

Homeroom
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Warm-up-pg. 7-Layers of the Earth
1) Based on what you know at this point about
the rock cycle, what affect does the sun have
on the formation of sedimentary rocks?
2) Describe how each of the following can
occur:
If you scored less than an 80%,
Metamorphic to igneous
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Igneous to sedimentary
Igneous to metamorphic
1. In what type of rock do you find most of the
fossils?
2. How does igneous rock turn into
metamorphic rock?
3. How does metamorphic rock turn into
sediment?
4. Which type of igneous rock contains crystals and why?
5. Why have scientists not found any fossils in igneous
rocks?
6. Which type of rock would be found
near volcanoes?
7. Describe what a sedimentary rock
looks like?
8. How can a metamorphic rock
change into an igneous rock?
9. What is a common use of all types
of rocks?
10. What does the name metamorphic
mean?
Blue
Light brown
Dark brown
Yellow
Light orange
Orange
Inner Core
Red/
Orange
Outer core
Lower Mantle
Middle Mantle
Upper Mantle
Oceanic Crust
Continental crust
Red
Layers of the Earth Gallery Walk
• Describe the layer
• How thick is it? Be specific if there is more
than one region of the layer.
• At least one important fact.
The Crust
• Outermost layer
• 5 miles thick under the ocean and 25 miles
thick under the continents.
• Thinnest Layers
The Mantle
•
•
•
•
Semi-rock
1800 miles thick
3 layers-lower, middle, and upper
Magma is heated and rises, then cools and
sinks.
• This causes the tectonic plates to move.
Outer Core
•
•
•
•
Only liquid layer
1400 miles thick
Made of iron and nickel
6000 degrees C
Inner Core
• Solid iron and nickel
• 750 miles in diameter
• Extremely hot-9,000 degrees