What is a volcano?

What is magma?

• pieces of the Earth's crust

• molten rock inside of a volcano

• small rock

• plates that meet

What is lava?

• Molten rocks inside a volcano

• Molten rock outside a volcano

• small rocks

• magma

What is a central vent?

• the center of the volcano where the magma comes up from

• the top of the volcano

• the center of the Earth

• outer layer of the Earth

Tags

NGSS.MS-ESS2-2

What is a magma chamber?

• the center of the Earth

• a large underground pool filled with liquid rocks found beneath the surface of the Earth

• thin rocky outer layer

• a volcano that is sleeping

Tags

NGSS.MS-ESS2-2

What is the opening that extends from the magma chamber to the top of the volcano called?

• magma
• lava
• vent 
• crater

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

What is Magma when it reaches the surface of Earth?

• Lava
• Mafic Magma
• Felsic Magma
• None of these

Tags

NGSS.MS-ESS2-2

When an explosive eruption  forms a mixture of hot rock, ash, and gas, this material is called a...?

• Land slide
• Lava
• Eruption trail
• Pyroclastic flow

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

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

• Divergent Boundary
• Magma
• Subduction Boundary
• Volcano

Tags

NGSS.MS-ESS3-2

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

• Hot Spot
• Magma
• Lava
• Volcano

Why does magma tend to rise to the surface?

• It has large amounts of silica.
• It contains very little silica.
• It is denser than the surrounding material.
• It is less dense than the surrounding material.