SCIENCE 9 Q3 Quiz 1

What is the difference between magma and lava? 

• Where it is found (above or below the surface)
• How hot the molten rock is (lava is hotter than magma)
•  The type of boundary where it forms
• The viscosity of the molten rock (lava has a lower viscosity)

Which type of volcano has a steep cone-shaped hill or mountain made with only pyroclastic flow? 

• Cinder cone volcano
• Shield volcano
• Composite volcano
• Earthquake

Which ingredient in magma determines whether an eruption is explosive or quiet?

• Amount of rock.
• Amount of magma.
• Amount of obsidian rock.
• Amount of silica.

The long tube in the ground that connects the magma chamber to Earth's surface is called the _____________.

• Crater

• Pipe

• Vent

• Magma Chamber

Once magma reaches the Earth's surface it is called.......

• Silica

• Lava

• Rock

• Molten

Magma leaves a volcano through a....

• Sill

• Vent

• Chamber

• Crater

TRUE or FALSE: A volcano that erupts quietly will produce a lot of cinders, ash, and bombs

• TRUE

• FALSE

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

• Hot Spot
• Magma
• Lava
• Volcano

Where are most volcanoes found?

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

Which type of volcano has a steep cone-shaped hill or mountain made with only pyroclastic flow? 

• Cinder cone volcano
• Shield volcano
• Composite volcano
• Earthquake