Holt Earth Science Chapter 19

Earth's upper mantle is made of this rock.

• Peridotite

• Anthracite

• Calcite

• Crystalline structures

Tags

NGSS.MS-ESS2-1

Epicenter

• The record produced by a seismometer.

• The point of failure of rocks inside depths of the earth.

• The points on Earth's surface directly above the focus.

• Fracture in rock along which movement occurs.

Tags

NGSS.MS-ESS3-2

From studying seismic waves, scientists have determined that the outer core is made of this.

• Liquid mercury and iron

• Liquid iron and nickel

• liquid magma and oxygen

• liquid crystal and copper

Tags

NGSS.MS-PS1-1

Focus

• The point of failure of rocks inside depths of the earth.

• Scale that rates earthquake intensity.

• Forces per unit area acting on a material.

• The points on Earth's surface directly above the focus.

This type of wave is refracted, or bent by earth's outer core.

• S-waves

• P-waves

• surface waves

• ocean waves

Secondary Wave

• Seismic wave that squeezes and pulls rock in the same direction.

• Seismic wave that causes the ground to move in two directions.

• The fastest wave

• Seismic wave that causes rock to move at right angles to the direction along which the wave travels.

Tags

NGSS.MS-PS4-2

This is the amount of damage done to structures as a result of an earthquake.

• Magnitude

• Intensity

• Destructive scale

• Violence

Tags

NGSS.MS-ESS3-2

Primary Wave

• seismic wave that squeezes and pulls rock in the same direction.

• Seismic wave that causes rock to move at right angles to the direction along which the wave

• Seismic wave that causes the ground to move in two directions.

• Slowest wave

A seismometer is designed so that its fram vibrates with the movement of this.

• Air

• Ground

• Buildings

• Gravity

Seismogram

• The record produced by a seismometer.

• Instrument that records earthquake vibrations.

• Forces per unit area acting on a material.

• Scale that rates earthquake intensity.