Vocabulary
Earth's rocky outer layer?
What is the crust?
Seismic waves that cause compression and expansion rather.
What are P-waves?
Motion of Divergent Faults.
What is Spreading?
An instrument used to detect waves from an earthquake.
What is a Seismometer
Seismic waves that cause objects on the surface to move at a right angle in the direction of the waves.
What are S-waves?
Motion of Convergent faults.
Subduction
The transition of rock from one type to another.
What is the rock cycle?
Seismic waves that can travel through solid materials but not liquid or gas.
What are S-waves?
Earthquakes caused by human activities.
What are Induced Earthquakes?
Seismic waves that arrive first at the seismometer.
What are P-waves?
The generally accepted characterization of Earth's crust as large regions of rock slowly moving relative to each other.
What is the Theory of Plate Tectonics?
Three differences between S-Waves and P-Waves.
1. S-waves are compared to a jump rope swinging back and forth, while P-waves are compared to a spring.
2. S-waves can travel through solid materials, but P-waves can travel through all matter.
3. P-waves arrive first at the seismometer while S-waves arrive last.