What is the outermost layer of the Earth called?
Answer: The lithosphere
What is the densest layer of the Earth?
Answer: The inner core
What layer of the Earth is the hottest?
Answer: The inner core
Which layer of the Earth is liquid?
Answer: The outer core
Which layer of the Earth consists mostly of iron?
Answer: The inner core
What happens to the density of Earth as you move from the crust to the core?
Answer: The density increases with depth
Where are the lithospheric plates located?
Answer: The crust and upper mantle
What causes convection currents in the asthenosphere?
Answer: The rising of less dense magma and the sinking of more dense magma
As you move away from the mid-ocean ridge, what happens to the age of the rocks?
Answer: The rocks get older as you move away from the mid-ocean ridge
At what type of plate boundary does sea-floor spreading occur?
Answer: Divergent plate boundary
Where do mid-ocean ridges form? Hint: What type of plates and what do they do?
Answer: They form where two oceanic plates move apart
What did Alfred Wegener’s hypothesis state?
Answer: The continents were once part of one large landmass the over time broke into pieces and drifted to their present location.
What forms when two continental plates collide?
Answer: Mountains form
If you know where lithospheric plates meet, then what can you predict?
Answer: You will be able to predict where an earthquake might occur
What do you call the breaking down of rock?
Answer: Weathering
What do you call the movement of a sediment from one place to another?
Answer: Erosion
When does chemical weather occur most rapidly?
Answer: It occurs fastest in warm, humid climates.
What type of weathering is acid rain an example of?
Answer: Chemical weathering
Wind and water are the main causes of what type of weathering?
Answer: Mechanical weathering