6-4 Volcanoes and Plate Tectonics

What is the difference between magma and lava?

• magma is molten material inside the earth; lava is magma that has reached the surface

• magma is lava that has reached the surface; lava is molten material inside the earth

• magma and lava are the same thing

• magma is solid rock; lava is molten material inside the earth

T/F? A hot spot is an area where material from within the mantle rises and then melts, forming magma.

• True

• False

What do you call geographical regions with very high levels of volcanic activity, formed along the boundaries of Earth's plates?

• volcanic belts

• island arcs

• lava spots

• magma belts

Tags

NGSS.MS-ESS3-2

Which of the descriptions below is for an island arc?

• a curved chain of volcanic islands usually formed along converging plates where subduction takes place near a deep ocean trench.

• a major volcanic belt formed by the many volcanoes that rim the Pacific Ocean.

• Geographical regions with very high levels of volcanic activity, formed along the boundaries of Earth's plates

• an area where material from within the mantle rises and then melts, forming magma.

T/F? The Ring of Fire is a major volcanic belt formed by the many volcanoes that rim the Atlantic Ocean.

• True

• False

Tags

NGSS.MS-ESS3-2

What do you call a weak spot in the crust where molten material comes to the surface?

• earthquake

• volcano

Tags

NGSS.MS-ESS3-2

The molten mixture of rock forming substances, gases, and water from the mantle is known as _______________.

• lava

• magma

• ring of fire

• hot spot

T/F? Lava is a molten material that has reached the surface of a volcano

• True

• False

Tags

NGSS.MS-PS1-4

Did you check the Earthquakes map today?

• Yes

• No

Tags

NGSS.MS-ESS3-2

Who is your favorite science teacher?