Volcanoes

Melted rock inside the Earth is called

• magma.

• water.

• fire.

• surface.

When magma flows out of the volcano it is called

• air

• water

• egg shells

• lava

If lots of lava flows out in one spot on the surface of the Earth it forms a mountain and is called

• magma.

• an ocean.

• a volcano.

• a ring.

What types of landscapes are featured near or with volcanoes?

• Uplifts, Erosion, and Weathering
• Hot Spots and Flood Basalts
• Vents, Craters, and Calderas
• Batholiths, Stocks and Sills

What factor(s) determine(s) whether an eruption will be explosive?

• The amount of gases in the magma
• The amount of silica in the magma
• The amount of gas and silica in the magma
• None of these affect the explosiveness of the volcano

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)

Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called

• shield volcanoes
• cinder cone volcanoes
• composite volcanoes
• lava plateaus

What stage is a volcano in when it is considered to be "sleeping"?

• Dormant
• Active
• Extinct
• Alive

Tall, cone-shaped mountains in which layers of lava alternate with layers of ash

• Cinder Cone volcano
• Shield volcano
• Composite volcano
• Caldera

A live volcano

• Dormant volcano
• Active volcano
• Extinct volcano
• Shield volcano