Continental Drift
Plate Boundaries
Earthquakes
Volcanoes
Earth's Interior
100
Which of these statements is true? The continents are moving quickly over time Earth is gaining landmass Earth is heating up and expanding The continents are moving slowly over time
What is the continents are moving slowly over time. (continental drift)
100
What land feature would you find at a divergent boundary?
What is MID OCEAN RIDGE, VALLEY, VOLCANO
100
Why are surface/land waves the most destructive?
What is they are SLOWEST, shake the land for long periods of time.
100
If magma is NOT VERY VISCOUS... that means it is_____. BONUS: What type of eruption will this be?
What is thin, liquidy very small eruption, flowy lava but no big explosion.
100
What happens to the temperature as you travel inward towards the core
What is TEMPERATURE RISES
200
How do fossils give evidence that Pangea once existed.
What is the same fossils were found on different continents even though the animal could not have possibly swum across the ocean.
200
At what boundary would you find the YOUNGEST ROCKS (most recently formed)? Bonus: What is the process called that creates these new rocks.
What is DIVERGENT BOUNDARY where sea floor is spreading Bonus: SEA FLOOR SPREADING
200
What term is used to describe the point on Earth’s surface directly above the point on a fault where a deep earthquake occurred?
What is EPICENTER
200
How does the amount of silica in magma affect a volcanic eruption?
What is more silica and gases in magma = LARGER eruption less silica and gases in magma = SMALLER eruption
200
What happens to pressure as you dig towards the Earth's core?
What is pressure goes UP
300
How do the shapes of the continents give evidence that Pangea once existed? BONUS: Which continents fit together best?
What is the continents seem to fit together... especially South America and Africa.
300
What happens to the crust at a CONVERGENT BOUNDARY where there is a subduction zone?
Crust is MELTED or RECYCLED back into the mantle
300
What happens to the intensity of the earthquake as the distance from the epicenter increases?
What is INTENSITY DECREASES
300
What would happen to an island chain if the direction of the plate changed?
The island chain would bend or start forming islands in a new direction
300
Name one difference between the OUTER and INNER core and the MANTLE
What is OUTER and INNER core are metallic. Core is hotter. MANTLE is molten rock and less hot than core
400
How does glacial evidence prove that Pangea once existed
What is certain continents have evidence of glaciers even though today they are at low latitudes and have very hot climates. (ex: Africa)
400
After looking at evidence of earthquake epicenters and volcanic eruptions, which statement is most true: Earthquakes and volcanoes are associated with plate boundaries Most volcanoes are associated with hot spots and island chains. Most earthquakes occur on plate boundaries where heat flow is high. Earthquakes and volcanoes are spread out evenly over most of the surface.
What is Earthquakes and volcanoes are associated with plate boundaries!
400
What can scientists found out about an earthquake based on a seismograph reading (2 things)
What is LOCATION of EPICENTER and MAGNITUDE (strength of vibrations)
400
Hawaii is an island chain that formed in the middle of a plate at a site called a _______.
What is HOTSPOT
400
How does the core affect the mantle?
What is the core heats up the mantle so that the lower parts of the mantle get hot and rise towards the crust. This creates a convection current.
500
What was the final discovery that led people to believe in the theory of continental drift?
What is SEA FLOOR SPREADING on the ocean floor.
500
What features would you find at a CONVERGENT BOUNDARY? (at least 2)
What are volcanoes, folded mountains, subduction zones
500
Name at least 2 factors that could cause 2 homes that were equidistant from an earthquake epicenter to have different amounts of damage.
What is one is built on bedrock (less damage) while the other is built on loose soil or sand (more damage) one is built with steel (less damage) while the other is built with wood, brick, or cement (more damage) one is has isolated foundation (less damage)
500
What is a dike or sill?
What is cooled off magma underground. It is affected by erosion (wearing down of rock) over the years.
500
How does movement in the mantle affect the Earth's crust. Choose the statement that is most true: Movement in the mantle releases magma into the mantle. Movement in the mantle produces iron in the core. Movement in the mantle results in plate interaction. Movement in the mantle melts materials in the mantle.
What is movement in the mantle results in PLATE INTERACTION.
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