In too deep!
Too hot to mantle
Adrift
Hold it together oceans
Clean your plate! Tectonics
100
What is the outer-most layer of the Earth?
The Crust
100
The transfer of heat (energy) through an empty space, like the sun to the Earth, is called ___________________.
Radiation
100
What is Pangaea?
The name of the supercontinent that existed millions of years ago.
100
Oceanic crust near the mid-ocean ridge is (Younger or Older) than crust that is farther away from the ridge.
Younger
100
A place where two plates come together is known as a ___________________ boundary.
convergent
200
What is the Earth's mantle made from?
Hot rocks!
200
When you added the bottle of hot, colored water the food coloring appeared to "float" to the top. Why?
Hot material is less dense than cool material... Cool material goes down and it appears hot material rises.
200
What was Wegener's hypothesis of continental drift was that all continents were...
once joined together in a single landmass and drifted apart.
200
The process of ________________________ continually adds new crust to the ocean floor along both sides of the mid ocean-ridge.
Sea-floor spreading
200
A place where two plates slip past each other, moving in opposite directions, is known as a ____________________ boundary.
Transform
300
What is the Earth's inner core made from, and is it solid or liquid?
A dense ball of solid metal
300
When you touch a hot pan and burn yourself, this type of heat transfer takes place.
Conduction (The d is for direct)
300
Give an example of how Wegener used climate to support his theory.
1. Tropical plants found in the Arctic 2. Evidence of glaciers in warm climates (South Africa)
300
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is called ____________________
Subduction
300
Scientist believe convection currents in the Earth's _________________ occur and cause the plates to move.
mantle
400
As you get deeper in the Earth, what happens to temperature and pressure?
Temperature and pressure increase
400
Heat transfer within a fluid takes place by ________________ currents.
convection
400
Which of the following did Wegener NOT use as evidence: A. Fossils B. Remains of humans C. Climate evidence D. Landforms (mountains, etc)
B. Human remains
400
I am a fine-grained rock with dark texture that makes up oceanic crust. What am I?
Basalt
400
A rift valley forms at a ____________________ boundary.
Divergent plate boundary
500
How do Geologist acquire indirect evidence about the Earth's interior?
Studying seismic waves
500
Mantle material sinks (goes down) because it is ____________ dense than hot Mantle and the force of _______________ is pulling it down.
more dense gravity pulls it down
500
Why did scientist reject Wegener's hypothesis?
He could not prove how the continents move.
500
If subduction occurs faster than oceanic crust can be created, what will happen to the ocean?
The ocean will shrink.
500
The geological theory that states that pieces of Earth's lithosphere are in constant, slow motion is the theory of...
plate tectonics
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