Processes
What is the term for the movement of magma within the Earth?
What are convection currents
What is the point on the Earth's surface directly above an earthquake's focus?
What is the epicenter
What is the name of the molten rock beneath the Earth's surface?
What is magma
What type of boundary involves plates sliding apart?
What is a divergent boundary
What is the name of the theory that explains the movement of Earth's plates?
What is the Theory of Plate Tectonics
What drives the movement of tectonic plates?
What is heat from the Earth's core
What instrument measures seismic waves?
What is a seismograph
What type of volcano has steep slopes and erupts explosively?
What is a composite volcano
What type of boundary is characterized by plates colliding?
What is a convergent boundary
Who proposed the theory of continental drift?
Who is Alfred Wegener
What is formed when two plates collide and push up the Earth's crust?
What is a mountain range
What type of fault occurs when two blocks of crust slide past each other horizontally?
What is a strike-slip fault
What is the name of the opening through which magma escapes to the surface?
What is a vent
What type of boundary is characterized by plates sliding past each other?
What is a transform boundary
What does the term "magnetic reversal" refer to?
What is the change in Earth's magnetic field where the magnetic north and south poles switch
What is the process called when tectonic plates slide past each other?
What is a transform boundary
What are the waves that travel through the Earth during an earthquake?
What are seismic waves
What type of volcano is formed by alternating eruptions of lava and ash?
What is a composite volcano
What type of stress is produced at divergent boundaries?
What is tension
What is the term for the stress that pulls rocks apart?
What is tension
What is the term for the gradual change in Earth's magnetic field?
What is magnetic reversal
What is the name given to the area of frequent earthquakes and volcanoes around the Pacific Ocean?
What is the Ring of Fire?
What is the term for a volcano that has not erupted in a long time but could erupt again?
What is a dormant volcano
What is the term for the deep underwater valleys formed at subduction zones?
What is a deep sea trench
What is the term for the change in shape of rocks due to applied stress?
What is strain