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Spreading Sea Floor

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A quiz on our #Slideshow! #seafloor #spreading #floor #sea Did you pay attention.

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Questions 10

Answers

1
What is sea floor spreading?
Wilson's famous theory
Mendel's now-famous theory
Albert Einstein's now- famous theory
Harry Hess's now-famous theory
2
What are ocean ridges?
Valleys underwater
All of the above
Mountains underwater
Ridges underwater
3
How do they measure depth?
Sticks
Echolocation
Waves
4
When did measuring the seafloor start?
1940s and 1950s
1920s and 1930s
1700s and 1780s
never
5
How are soundwaves used to map the seafloor?
using sound waves on ships to map areas of the ocean floor
when ships play music to use the vibrations from the bass
6
The Glomar Challenger is a research ship that gathered information about ___?___
Titanic
fish
sea plants
rocks
7
Where is magnetite found?
Fish
Ships
Water
Rocks
8
What is the seafloor?
a portion of Earth's crust that lies beneath ocean waters
a floor that looks like the sea
a portion of the Earth's core that lies beneath ocean waters
a sea that looks like the floor
9
Who is Harry Hess?
Princeton scientist
Princeton paleontologist
Princeton geologist
Princeton meteorologist
10
Earth's magnetic field has a _____?
on and off switch
north and south ridge
north and south pole
Earth does not have a magnetic field.