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What is the hypothesis of continental drift?
All of the continents were once joined togehter.
The mid ocean ridge is what type of boundary?
divergent
Which layer of the Earth is where convection currents flow?
Mantle or asthenosphere
Tectonic plates
Why didn't anyone believe Wegener?
He couldn't prove how they moved
What is Pangaea?
The supercontinent that existed hundred of million years ago
What is the equation for density?
Mass divided by volume
What causes the Earth's plates to move?
convection currents in the mantle
Where does sea floor spreading happen?
Along the mid ocean ridge
This is the longest chain of mountains in the world.
Mid ocean ridge
What were the 3 types of evidence that Wegener used to support his continental drift hypothesis?
Fossils
Landforms
Climate change
Describe hot molecules:
1. less dense or more dense
2. close together or farther apart
3. more active or less active
less dense
farther apart
more active
MUST HAVE IN CORRECT ORDER:
1. When plates go past each other in opposite directions.
2. When plates come together.
3. When plates spread apart.
1. Transform
2. Convergent
3. Divergent
This process is where old ocean floor goes back into the mantle.
subduction
MUST HAVE ALL 3 IN THE CORRECT ORDER:
1. When heat is transferred through direct contact.
2. When heat is transferred through fluids.
3. When heat is transferred through empty space/
1. Conduction
2. Convection
3. Radiation
Must have in correct order:
1. This crust is thin and more dense
2. This crust is thick and less dense
1. oceanic crust
2. continental crust
What causes convection currents to start?
(What is the first step of a convection current?)
A change in temperature
MUST ANSWER ALL 3 CORRECTLY
What are 3 things that fossils tell us?
1. History of Earth (landforms)
2. What the environment used to be like (climate)
3. How species changed over time (adaptations)
closer to the mid ocean ridge
This is the theory that states the Earth's lithosphere are in constant motion.
plate tectonics
Daily Double!!!!!
Who is the oldest child in The Incredibles?
Violet
Daily Double!!!!
What is Minnie Mouse's cat's name?
Figaro
Daily Double!!!!!
Who is the main character in A Bugs Life?
Flik
Daily Double!!!!
What district was Katniss Everdeen from?
District 12
MUST HAVE IN CORRECT ORDER
1. This process is responsible for making oceans larger.
2. This process is responsible for making oceans smaller.
1. sea floor spreading
2. subduction