Volcanoes

what is the hot melted rock called INSIDE the volcano?

• magma

• lava

• crust

• plate

What is hot, melted rock OUTSIDE of Earth's surface called?

• magma

• crust

• lava

• crater

A volcano that hasn't erupted in a long time, but might again.

• Extinct

• Hot spots

• Active

• Dormant

What is the blue arrow pointing to?

• vent
• crater
• ash cloud
• magma chamber

A volcano that periodically erupts is called

• extinct.

• active.

• dormant.

• shield volcano.

A volcano that is unlikely to erupt again is called

• active.

• extinct.

• dormant.

• cinder cone.

What is an effusive eruption?

• When lava flows easily and erupts quietly with gases bubbling out gently and lava oozing out quietly.

• When trapped gases build up pressure until they explode with incredible force.

• When ashes and cinders pour down a mountain.

What is an explosive eruption?

• When trapped gases build up pressure until they explode with incredible force.

• When magma flows easily and erupts quietly with gases bubbling out gently and lava oozing out quietly.

• When ashes and cinders pour down a mountain

An opening in the Earth's crust through which molten rock, gases, and ash erupts is called a(n) _____________. 

• explosion
• volcano
• vent
• geyser

Tags

NGSS.MS-ESS2-2

A volcano has several basic parts. Under the volcano is a pocket of molten rock known as the _____.

• crater

• vent

• magma chamber

• mantle