Earth's Interior

How do seismic waves give scientists information about Earth's interior?

• They change speed and direction through different materials

• 0. They travel at constant speeds

• 0. They behave the same in all materials
     

• 0. They travel in straight lines

Tags

NGSS.MS-PS4-2

1. How does Earth's overall density compare to the crust?

• 0. It is more dense

• 0. It is less dense

• 0. It is has the same dense

1. The deep interior of the Earth cannot be mapped using seismic waves.

• True

• False

1. An iron meteorite is the closest thing to a sample of the crust that you can hold in your hand.

• True

• False

An iron meteorite is the closest thing to a sample of the earth's core that you can hold in your hand.

• True

• False

1. Earth's density indicates that the Earth contains a significant amount of metal.

• True

• False

1. Scientists learn about Earth’s interior from seismic waves, rocks, and calculations of density and magnetism.

• True

• False

1. Fill in the blank(s):

   Earth's overall density is too great for the whole planet to be made of rocky materials that make up the____________________.

7. What are the waves of energy that radiate out from an earthquake’s focus?

• short waves

• long waves

• seismic waves

• border waves

7. In what ways could a geologist's understanding of the Earth's layers assist in their investigation of earthquakes?

• 1. Geologists analyze how seismic waves travel through rock material to determine what rare minerals are present.

• 1. By analyzing seismic waves and determining the characteristics of various rock and soil layers, which helps assess earthquake hazards.

• 1. Geologists can manipulate seismic activity and prevent or minimize the strength of earthquakes.

• 1. By studying the Earth's layers, geologists can predict the magnitude of an earthquake.

• All of these

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2