Volcanoes

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

Tags

NGSS.MS-ESS2-1

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

The belt of volcanoes around the rim of the Pacific Ocean is called:

• Island arc
• Ring of Fire
• Lava plateau
• Hawaii

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

NGSS.MS-ESS2-3

Shield volcanoes have:

• gently sloping sides
• a steep cone shape
• moderately sized sides
• long cracks along plate boundaries

The Hawaiian islands are made from this type of volcano.

• Composite
• Cinder Cone
• Shield
• Big

The name of a volcano that erupted in Washington State in 1980.

• Mt. Fuji
• Old Faithful
• Mt. St. Helens
• Mt. Pinatubo

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

An opening through which the lava flows is called:

• crater
• caldera
• vent
• pipe

Tags

NGSS.MS-ESS3-2

This common type of volcano is made up of alternating layers of ash and lava.

• Shield volcano
• Composite / Stratovolcano
• Cinder cone
• Fissure volcano

Volcanoes swell when

• too many people climb the mountain.

• there is too much rain.

• air builds up inside it.

• magma pushes up inside it.