Volcanism

Hot, liquid, melted (molten) rock found beneath the Earth's surface.

• Lava

• Magma

• Pyroclastic Material

• Lapilli

Tags

NGSS.MS-ESS2-1

Hot, liquid, melted (molten) rock that has erupted onto the Earth's surface.

• Lava

• Magma

• Pyroclastic Material

• Lapilli

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

NGSS.MS-ESS3-2

A type of pyroclastic material that falls as "little stones" that are "pea to golf ball" in size.

• Volcanic Bombs

• A'a

• Pahoehoe

• Lapilli

This type of lava flow is runny and has a smooth, ropy, wrinkled texture.

• A'a

• Pahoehoe

• Pillow Lava

• Lapilli

This type of lava flow is a bit thicker, stickier and has a chunky, sharp, jagged texture.

• A'a

• Pahoehoe

• Pillow Lava

• Lapilli

This type of volcanic rock forms when magma erupts underwater. It has a rounded shape and a smooth, glassy texture.

• A'a

• Pahoehoe

• Pillow Lava

• Lapilli

A large circular depression that occurs when a volcano collapses into its empty magma chamber after a large eruption or at the the end of its life cycle.

• Mantle Plume

• Cinder Cone

• Caldera

• Composite Volcano

Tags

NGSS.MS-ESS2-2

Which of the following are characteristics of mafic magma???

(Choose three)

• Thin and runny like honey

• Involved in explosive eruptions that produce lots of pyroclastic material

• Involved in quiet (effusive) eruptions that produce large lava flows

• Thick and sticky like oatmeal

• Dark in color and contains very little trapped gases

Which of the following are characteristics of felsic magma???

(Choose three)

• Thin and runny like honey

• Involved in explosive eruptions that produce lots of pyroclastic material

• Involved in quiet (effusive) eruptions that produce large lava flows

• Thick and sticky like oatmeal

• Light in color and contains lots of trapped gases

Which of the following best shows a cinder cone?

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