Volcanoes

This is the name for the chain of volcanoes and earthquakes around the edge of the Pacific Plate.

• The Subduction Zone

• The Ring of Fire

• The Seismic-Tectonic Area

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

What kind of plate boundary is shown here?

• divergent

• convergent

• transform

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Hot melted rock that forms underground near the subduction zone is called ___.

• lava

• sedimentary rock

• igneous rock

• magma

Tags

NGSS.MS-ESS2-2

What is magma called when it reaches the surface of Earth?

• Lava

• viscosity

• toxic gas

Tags

NGSS.MS-ESS2-1

How much ___ that is in a volcano's magma helps to decide whether it will be explosive or quiet.

• silica

• rock

• air holes

• soil

Tags

NGSS.MS-ESS2-1

True or False: The more silica a volcano has in its magma, the quieter it will erupt.

• true

• false

Match the volcano to its descriptions?

• Cinder Cone

• 
• Shield

• 
• Composite

• 

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-2

What is a volcano?

• A weak spot in Earth’s crust where magma can come to the surface.

• A mix of rocks, minerals, gases, and water from the mantle.

• Hot semifluid rock that becomes solid rock as it cools off.

• A special kind of mountain.

Where do volcanoes typically form?

• At plate boundaries.

• In the middle of tectonic plates.

Tags

NGSS.MS-ESS2-1

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.

Tags

NGSS.MS-ESS3-2