BJU Science 6 Volcanoes

What forms where hot magma rises through dense rocks until it breaks through a crack in the earth’s surface?

• volcano

• lava

• vog

• hot spring

What is the name given to the active volcanoes around the edges of the Pacific Ocean

• Ring of heat

• Ring of volcanoes

• Ring of Fire

What is hot molten rock that breaks through the surface of the earth called?

• cinder

• lava

• magma

• ash

What is a mixture of cinders, ash, and rock emitted by a volcano?

• ash

• vog

• tephra

• proclastic

What is volcanic gases released into the air called?

• dog

• log

• fog

• vog

What is a body of water heated by an underground magma pool called?

• geyser

• mud pod

• hot springs

• acid rain

What are avalanche of red-hot dust and gases emitted by a volcano?

• magma flow

• pyroclastic flow

• active volcano

• lava flow

What does a volcano produce?

• igneous rock

• gyser

• soil rich in nutrients and minerals

• mud pot

What causes a volcano?

• acid rain

• tsunami

• heated magma rising to the earth's surface

• hot spot

A volcano that is expected to erupt

• dormant

• active

• extinct