Volcanoes Quiz

What is the opening at the top of a volcano called?

• Mouth

• Crater

• Opening

• Vent hole

Which of these describes melted rock below Earth's surface?

• Lava

• Magma

• Crystal

• Stone

What is melted rock called after it reaches Earth's surface?

• Magma

• Lava

• Ash

• Pumice

Which type of volcano is known for violent explosions?

• Composite

• Shield

• Cinder cone

• Dormant

A volcano that hasn't erupted in recorded history but might erupt again is called:

• Extinct

• Active

• Dormant

• Dead

The largest active volcano on Earth is:

• Mount St. Helens

• Mount Vesuvius

• Mauna Loa

• Mount Fuji

Most volcanoes on Earth are found in the:

• Ring of Fire

• Equator

• Arctic Circle

• Southern Hemisphere

What type of volcano has gently sloping sides?

• Composite volcano

• Shield volcano

• Stratovolcano

• Cinder cone

The study of volcanoes is called:

• Geology

• Volcanology

• Seismology

• Geography

Which gas is commonly released during volcanic eruptions?

• Oxygen

• Hydrogen

• Sulfur dioxide

• Nitrogen