How do earthquakes help scientists increase their understanding of the composition of the mantle?

• Their locations are indicators of where upward mantle convection is occurring.

• Their frequency of occurrence indicate the velocity of movement of mantle materials.

• They expose fresh mantle materials that scientists can quickly collect and analyze before the rock is changed by exposure to air.

• They produce waves that are transmitted, reflected, and absorbed as they travel through Earth and provide information about the mantle.

Tags

NGSS.MS-PS4-2

The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle is called

• Continental Drift

• Plate Tectonics

• Pangaea

• Earthquake

Tags

NGSS.MS-ESS2-3

Which statement describes the boundary where two oceanic plates collide?

• One plate moves under the other, forming a deep submarine trench with a line of explosive volcanoes.

• The plates push each other downward, forming deep ocean trenches as plates move far into the mantle.

• The plates push each other upward, forming a mid-ocean ridge surrounded by some of the highest mountain peaks on Earth.

• The plates crumble and pile up as they move toward each other, forming low-lying mountains characterized by jagged rock formations.

Tags

NGSS.MS-ESS2-2

Which evidence provides support for the motion of Earth's tectonic plates being predictable?

• Continents are separating at a rate of 3-5 cm/year.

• Valleys are often found near glaciers.

• Seismic waves travel at different speeds through Earth.

• Large Mountains and volcanoes appear throughout the world.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

A naturally occurring substance that can form rocks.

• Nutrient

• Gas

• Mineral

• Substance

Tags

NGSS.MS-ESS3-1

Mid-Ocean ridges are formed by divergent boundary. ​

• True
• False

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

A cycle of rock flow with the mantle contributes to the movement of Earth's tectonic plates. What is the main source of energy for this cycle?

• Earth's mantle, where radioactive elements decay.

• Earth's oceans, where energy moves by conduction to the crust.

• The sun, which transfers radiant energy- to power all of Earth's systems.

• Volcanoes near the mid-ocean trenches, which heat surrounding rock until it is molten.

Tags

NGSS.MS-ESS2-1

How do earthquakes help scientists increase their understanding of the composition of the mantle?

• Their locations are indicators of where upward mantle convection is occurring.

• Their frequency of occurrence indicates the velocity of movement of mantle materials.

• They expose fresh mantle materials that scientists can quickly collect and analyze before the rock is changed by exposure to the air.

• They produce waves that are transmitted, reflected, and absorbed as they travel through Earth and provide information about the mantle.

Tags

NGSS.MS-PS4-2

What layer of Earth is made mostly of solid iron?

• Crust

• Mantle

• Inner core

• Outer core

What is used to measure the movement of plates?

• GPS

• Seismograph

• Scanner

• Google maps

Tags

NGSS.MS-ESS2-3