Plate Tectonics and Volcanoes

This plate is involved in all of the Ring of Fire Volcanoes.

• The Nazca Plate

• The North American Plate

• The Pacific Plate

• The Indian Plate

Tags

NGSS.MS-ESS3-2

The difference between magma and lava is _____

• where it is found (above or below the surface)

• how hot the molten rock is (lava is hotter than magma)

•  the type of boundary where it forms

• the viscosity of the molten rock (lava has a lower viscosity)

TRUE or FALSE: Volcanoes form along the mid-ocean ridges, where two plates move together.

If false change the underlined word to make it true.

• TRUE

• FALSE: apart

• FASLE: past each other

Where does magma form?

• Crust

• Upper mantle

• Upper mantle and crust

• Asthenosphere

The image shows the Mid Atlantic Ridge. Which type of boundary occurs at this ridge where the ocean floor is spreading apart? 

• convergent

• divergent 

• transform fault

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

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.

Lava is a molten material that has reached the surface of a volcano

• True

• False

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