Layers of the Earth
What is the outermost layer of the Earth called?
What is the crust?
What type of plate boundary occurs when two plates move away from each other?
What is a divergent boundary?
Define "tectonic plates."
What are large sections of the Earth's crust that move and interact?
How does density influence the movement of tectonic plates?
What is denser plates sink and less dense plates rise?
What drives the movement of tectonic plates?
What is mantle convection?
Name the layer of the Earth that is made up of molten rock(magma) and is found beneath the crust.
What is the mantle?
At which type of boundary do plates collide?
What is a convergent boundary?
What does "subduction" refer to?
What is the process where one plate moves under another plate?
What is the relationship between temperature and density in the mantle?
What is as temperature increases, density decreases?
How does slab pull affect plate movement?
What is it pulls a tectonic plate down into the mantle?
What layer of the Earth is primarily composed of iron and nickel. It also generates the Earth's magnetic field?
What is the core?
What happens when two continental plates collide?
What is they create mountains?
What is a "fault"?
What is a fracture in the Earth's crust where movement has occurred?
Explain how convection currents are formed in the mantle.
What is heat from the core and mantle creates convection currents that drive plate movement?
What is the primary force that causes plates to move horizontally?
What is mantle convection currents?
Describe the state of matter of the mantle.
What is semi-solid or viscous? or thick Liquid
What is a transform boundary?
What is a boundary where two plates slide past each other?
Define "magma."
What is molten rock beneath the Earth's surface?
How does the density of oceanic crust compare to continental crust?
What is oceanic crust is denser than continental crust?
What role does the asthenosphere play in plate movement?
What is it allows tectonic plates to float and move?
What is the main difference between the lithosphere and asthenosphere?
What is lithosphere is rigid, while asthenosphere is partially molten and can flow?
Name one geological feature that is commonly formed at a divergent boundary, between two oceanic plates?
What is a mid-ocean ridge?
What is "isostasy"?
What is the equilibrium between the Earth's crust and the mantle?
Describe how mantle convection contributes to the theory of plate tectonics.
What is it drives the movement of plates by circulating heat and material?
Explain how plate movement can lead to earthquakes.
What is stress builds up at plate boundaries, which is released as seismic energy?