The Changing Earth

What is the definition of dormant?

• sleeping
• extinct
• active
• invisible

What are scientists that study volcanoes called?

• doctor
• vet
• volcanologist
• volcano scientist

What is the opening that extends from the magma chamber to the top of the volcano called?

• magma
• lava
• vent 
• crater

What is Magma when it reaches the surface of Earth?

• Lava
• Mafic Magma
• Felsic Magma
• None of these

A volcano that has gentle sloping sides and is formed from runny lava

• Shield volcano
• Cinder cone
• Composite
• None of these

When an explosive eruption  forms a mixture of hot rock, ash, and gas, this material is called a...?

• Land slide
• Lava
• Eruption trail
• Pyroclastic flow

This is the name for the chain of volcanos around the edge of the Pacific Plate.

• Circle of Fire
• Ring of Lava
• Ring of Fire
• Circle of Magma

Dormant volcanoes might erupt in the future.

• True
• False

This city was destroyed in 79 A.D. by the eruption of Mt. Vesuvius.

• Rome
• Munich
• Pompeii
• Naples

When would a river form a delta?

• when the river meanders across a plain
• when the river leaves the mountains
• when it is in the mountain
• when it enters the ocean