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- 1. Multiple Choice
Which of the following lists Earth's layers in order from outermost to innermost?
inner core, outer core, mantle, crust
mantle, outer core, inner core, crust
crust, mantle, outer core, inner core
- 2. Multiple Choice
Which best describes the mantle?
molten (melted) metal
hot, slow flowing rock
dry land and ocean floor
- 3. Multiple Choice
What do geologists call the crust and uppermost mantle?
lithosphere
mesosphere
asthenosphere
- 4. Multiple Choice
Which layer is responsible for Earth’s magnetic field?
inner core
outer core
mantle
- 5. Multiple Choice
Which of Earth’s layers is the thickest?
core
crust
mantle
- 6. Multiple Choice
Which of Earth’s layers is the coldest?
crust
mantle
core
- 7. Multiple Choice
In which layer is the asthenosphere located?
mantle
core
crust
- 8. Multiple Choice
As you go deeper down inside Earth, what happens to the density?
it increases
it decreases
it stays the same
- 9. Multiple Choice
In which layer do convection currents take place?
core
mantle
crust
- 10. Multiple Choice
Which layer is the least dense?
mantle
crust
core
- 11. Multiple Choice
Which best describes the crust?
molten (melted) metal
hot, solid rock
dry land and ocean floor
- 12. Multiple Choice
Which layers are completely liquid?
inner core & outer core
outer core only
outer core & mantle
- 13. Multiple Choice
What makes up the majority of Earth’s core?
iron and nickel
aluminum and silicon
iron and magnesium
- 14. Multiple Choice
What happens to the temperature as you go deeper down inside Earth?
it increases
it decreases
it stays the same
- 15. Multiple Choice
Which layer is the thinnest?
core
mantle
crust
- 16. Multiple Choice
Which layers are solid?
crust, mantle, outer core
inner core, mantle, crust
inner core, outer core & crust
- 17. Multiple Choice
Which best describes the inner core?
molten (melted) metal
hot, solid rock
dense, solid metal ball
- 18. Multiple Choice
Which best describes the outer core?
molten (melted) metal
hot, solid rock
dense, solid metal ball
- 19. Multiple Choice
What makes up the majority of Earth’s crust?
iron & nickel
aluminum & silicon
iron & magnesium
- 20. Multiple Choice
Which of the following is true?
to learn about Earth’s interior, geologists study how seismic (earthquake) waves move through Earth
the oceanic crust is most like granite in composition overall
continental crust is much thinner than oceanic
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