Earth Science Quiz 4

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

• Hot Spot
• Magma
• Lava
• Volcano

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

• Aa
• Lava
• Magma
• Pahoehoe

What factor(s) determine(s) whether an eruption will be explosive?

• The amount of gases in the magma
• The amount of silica in the magma
• The amount of gas and silica in the magma
• None of these affect the explosiveness of the volcano

As magma rises towards the surface it collects in a 'room' called a _____ _____ . 

• magma chamber
• side vent
• main vent
• lava chamber

What is a volcano?

• A mountain that has lava all over it 
• A giant hill filled with magma
• A long high sea wave 
• A hole in the Earth where magma erupts

Where are most volcanoes found?

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

A weak spot in the crust where molten material, or magma comes to the surface

• lava
• volcano
• earthquake
• tsunami

What type of volcano is this?

• Fissure

• Shield

• Dome

• Stratovolcano/ Composite

What type of volcano is this?

• Fissure

• Shield

• Dome

• Stratovolcano/ Composite

What type of volcano is this?

• Fissure

• Shield

• Dome

• Stratovolcano/ Composite