8th grade-Chapter 8- Earthquakes and volcanoes

What is the violent shaking of Earth's crust as built-up energy is released.

• earthquake
• epicenter
• fault
• focus

What is the point on Earth's surface directly above the focus of an earthquake?

• earthquake
• epicenter
• fault
• focus

What do you call the crack in Earth's surface along which movement takes place?

• earthquake
• epicenter
• fault
• focus

What do you call melted rock below the Earth's surface?

• lava
• fault
• focus
• magma

What do you call waves of energy sent through Earth's crust when parts of the crust move suddenly?

• thermal waves
• energy waves
• seismic waves
•  magma

Where do many earthquakes and volcanoes occur along the Pacific Ocean?

• along the Mid-Atlantic Ridge
• along the Nazca Plate
• along the Ring of Fire
• near India

What do you call melted rock once it hardens on the Earth's surface?

• focus
• magma
• lava
• seismic waves

Which earthquake wave is the most destructive?

• P waves
• S waves
• surface waves
• tsunami waves

Which boundary presses together?

• sliding boundary
• converging boundary
• diverging boundary
• transform boundary

What is the name of the instrument used to measure the waves of an earthquake?

• Richter Scale
• Octograph
• Seismograph
• Fault detecor