grade 9 topics

What is molten rock that has formed deep within the Earth?

• Hot Spot

• Magma

• Lava

• Volcano

Volcanoes that have recently erupted are known as:

• Extinct Volcano

• Dormant Volcano

• Active Volcano

• What's a volcano?

__________ volcanoes are usually steep sided. They are formed from layers of ash and lava.

• Shield

• Dormant

• Cone

• Extinct

What is the spread of lava as it pours out of a vent?

• crater

• pipe

• magma chamber

• lava flow

What type of volcano has steep slopes made of alternating layers of ash and silica rich lava?

• Cinder Cone

• Shield Volcano

• Caldera

• Composite Volcano

What is the definition of dormant?

• sleeping

• extinct

• active

• invisible

A dead volcano, one that is unlikely to erupt again.

• Dormant volcano

• Extinct volcano

• Shield volcano

• Caldera

The formation of magma depends on which set of conditions?

• Pressure, Density, and Water Content

• Temperature, Density, and Pressure

• Temperature, Density, and Water Content

• Temperature, Pressure, and Water Content

Where do volcanoes come from?

• Places where plates move apart

• Places where plates are moving together

• Hot Spots

• All of these options

What is molten rock that has reached the Earth's surface?

• Aa

• Lava

• magma

• pahoehoe