Geosphere
Why does Earth have different layers?
a. Pressure makes heavy objects go down
b. Light objects (less density) go down and heavy objects go up
c. Heavy objects (more density) go down and light objects go up
d. All of the above
c. Heavy objects (more density) go down and light objects go up
Which spheres are interacting when CO2 from the air dissolves in water?
Atmosphere and hydrosphere
What are the names of the missing layers in the picture?
lithosphere (plates) & mantle
The "Recipe" for Life: Fill in the blank.
Liquid Core --> Magnetic Field --> __________ --> Liquid Water --> Life
Atmosphere
How did scientists discover the Earth's layers? Give multiple pieces of evidence.
Refraction of Earthquake waves through layers
S-waves don't go through outer core
Other: Magnetic field; convection & plate tectonics
How would life on Earth change if the asthenosphere (upper mantle) stopped moving?
Convection would stop...
Plate tectonics would stop...
Explain why plate tectonics are important