Volcanoes

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

• Hot Spot
• Magma
• Lava
• Volcano

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

• Caldera
• Cinder Cone
• Composite Volcano
• Shield Volcano

What type of volcano is made of lava fragments that have been ejected from a volcanic vent?

• Caldera
• Cinder Cone
• Composite Volcano
• Shield Volcano

Where are most volcanoes found?

• Southern Hemisphere
• Ring of Fire
• Mid-Atlantic Ridge
• Hot Spots

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

• Aa
• Lava
• Magma
• Pahoehoe

What type of volcano is Mount St. Helens?

• Caldera
• Cinder Cone
• Composite Volcano
• Shield Volcano

What do you call a large crater formed by the collapse of a volcano?

• Caldera
• Cinder Cone
• Composite Volcano
• Shield Volcano

What is the opening in Earth's crust through which molten rock, gases, and ash erupt?

• Divergent Boundary
• Magma
• Subduction Boundary
• Volcano

Which of the following describes a volcano that is not likely to ever erupt again?

• extinct
• active
• dormant 
• erupting

Which of the following is a volcano which scientists believe will eventually become active?

• dormant
• active
• extinct
• erupting