S6E5

Earthquakes release energy from the buildup of stresses. Once this energy is released, it is transferred though the Earth in the form of waves. The type of waves released by earthquakes are called

• Density waves

• Electromagnetic waves

• Stress waves

• Seismic waves

Using the diagram of Earth’s layers below, which letter in the diagram identifies the mantle?

• Area A

• Area B

• Area C

• Area D

Tags

NGSS.MS-ESS2-1

What causes convection currents to move within the mantle?

• Heat from the core causes material to become less dense and rise towards the surface and sinks after it reaches surface and cools

• Heat from the sun causes material to become less dense and rise towards the surface

• Heat from the sun causes material to become more dense and rise towards the surface

• Heat from the core causes material to become more dense and rise towards the surface

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-3

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Conduct experiment

Analyze results

Draw conclusions

Communicate results

Ask a question

Tags

NGSS.MS-PS2-5

When looking at the shape of the continental shelves that surround South America and Africa, it can be observed that the continental shelves fit together even though they are separated by the ocean. Which of the following best explains these observations?

• Ocean currents have eroded a similar pattern on the two coastlines.

• The continental shelves float on the ocean as it moves them back and forth.

• Land masses that form in similar situations usually have similar shapes.

• Convection currents separated the tectonic plates, separating these continents.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Most earthquakes and volcanoes occur in areas of the Pacific Ocean called "The Ring of Fire". Scientists agree that the reason for this is because ___.

• many convergent plate boundaries with subduction are located in those areas

• many convergent plate boundaries without subduction are located in those areas

• many divergent plate boundaries are located in those areas

• a large number of people live in these areas

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

What is the geologic impact of two oceanic plates at a convergent boundary?

• making mountains and volcanic islands

• seafloor spreading, making a mid-ocean ridge and volcanic islands

• a trench and a rift valley

• Subduction, making a trench and volcanic islands

Tags

NGSS.MS-ESS2-2

There is a geologic impact that is causing the continent of Africa to separate causing it to be torn apart. What type of plate boundary could be the cause of this separation?

• divergent plate boundary

• convergent plate boundary

• transform plate boundary

• Subduction zone

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Why is it important to study the movement that occurs at plate boundaries?

• to prevent hurricanes and tornadoes

• to understand weather and climate change

• to stop the extinction of plants and animals

• to predict volcano eruptions and earthquake locations (save lives)

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

As you leave the Earth’s core and travel towards the crust, what happens to temperature and density?

• Temperature increases: Density stays the same

• Density decreases, Temperature decreases

• Temperature increases; Density decreases

• Temperature increases; Density increases