Layers of Earth/Seismic Waves

Which causes the inner core to remain solid?

• high pressure

• high temperature

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3

What are the two sources of thermal energy in the Earth's interior?

• solar heating and gravity

• gravity and radioactive decay

Most scientists rejected Wegener's theory of continental drift because it did not explain________

• formation of mountains

• why the continents moved

Tags

NGSS.MS-ESS2-3

Which two layers are responsible for the formation of its magnetic field?

• the inner and outer core

• the crust and mantle

Which of the following describes the layer directly beneath the Earth's plates?

• It moves very rapidly and in different directions and places.

• It moves very slowly and in different directions and places.

If a planet has a liquid core,then the "S" waves _______.

• slow down when they travel through the core.

• are unable to pass through the core

Which statement is true about seismic waves?

• "S' waves travel through only solids and "P" waves travel through solids and water.

• "P" waves travel only through solids

Tags

NGSS.MS-PS4-2

Seismic instrument stations around the Earth will record fewer waves because they are _______ from the epicenter.

• closer

• farther

Tags

NGSS.MS-ESS3-2

Seismic Instrument stations father away from the epicenter record fewer waves because part of the Earth's interior bent some of the waves and ________________.

• Different materials in Earth reflect some of the waves.

• Some waves are blocked by water on the Earth's surface.

Tags

NGSS.MS-PS4-2