Volcanoes Review 2023

Presentation

•

Science

•

6th - 8th Grade

•

Practice Problem

•

Easy

•

NGSS

MS-ESS3-2, MS-ESS2-3, MS-ESS2-2

Standards-aligned

Cindy Mott

Used 18+ times

FREE Resource

6 Slides • 15 Questions

Volcano

(a weak spot in the Earth’s crust where magma comes to the

surface)

Review: Volcanoes

forms along

Subduction Zones

(where dense crust slide under less dense crust creating

magma that rises up to the surface)

Forms along convergent ( ) , divergent ( ), and hotspot boundaries

Magma - melted rock underground / Lava - melted rock that flows on the surface

Multiple Choice

Most Earthquakes and Volcanoes can be found....

along the coast of Anarctica

along plate boundaries

in the united States

Multiple Choice

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

Multiple Choice

What kind of plate boundary is shown here?

divergent

convergent

transform

Multiple Choice

What kind of plate boundary is shown here?

divergent

convergent

transform

Multiple Choice

What kind of plate boundary is shown here?

divergent

convergent

transform

Multiple Choice

The area where the ocean plate slides underneath the land plate, forming magma (and possibly a volcano) is called the ____.

moho

subduction zone

epicenter

Multiple Choice

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

lava

sedimentary rock

igneous rock

magma

Multiple Choice

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

Lava

viscosity

toxic gas

Review: Volcanoes

Parts of A Volcano

vent

Magma
chamber

pipe

Quiet

-Thin basaltic magma/lava (flows
easily and does not clog up the pipe
and vent)

-Low in silica

Types of Eruptions

Explosive

-Thick granitic magma/lava (flows
slowly and clogs up the pipe and
vent - builds pressure)

-High in silica

Multiple Choice

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

silica

rock

air holes

soil

Match

Match the following

Thick, granitic magma makes

Thin, basaltic magma makes

Volcano type that tends to erupt quietly

Volcano type that tends to erupt loudly

explosive eruptions

quiet eruptions

shield

composite

Multiple Choice

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

true

false

3 Main Types of Volcanoes

Shield

-Non explosive

-Made mostly of thin,
basaltic lava flows

-Large, island forming (Ex.
The Hawaiian Islands)

Composite

-Most common type on Earth

-Has the classic cone shape

-Very explosive - made mostly
of thick, granitic lava flows

-Has alternating layers of lava
flow and pyroclastic material

CInder Cone

-Tend to be smaller

-Can be composite or shield

-Tall, steep sides

-Lava is slightly thicker than the
shield (can explode out cinders)

3 Main Types of Volcanoes

Shield

-Non explosive

-Made mostly of basaltic lava
flows

-Large, island forming (Ex.
The Hawaiian Islands)

Composite

-Most common type on Earth

-Has the classic cone shape

-Very explosive

-Has alternating layers of lava
flow and pyroclastic material

CInder Cone

-Tend to be smaller

-Can be composite or shield

-Tall, steep sides

-Lava is slightly thicker than the
shield (can explode out cinders)

Match

Match the volcano to its descriptions?

Erupt quietly - has dark basaltic magma

Has tall steep sides

Erupt loudly - has light grinitic magma

Shield

Cinder Cone

Composite

Match

Match the volcano to its descriptions?

Is broader and wider than it is tall

Magma/lava is thinner than composite but thicker than shield

Most common type of volcano in the world

Shield

Cinder Cone

Composite

Match

Match the volcano to its descriptions?

Forms islands like Hawaii

Throws out chunks of flaming debris called cinders.

Most explosive type

Shield

Cinder Cone

Composite

Match

Match the volcano to its descriptions?

Shield

Cinder Cone

Composite

Volcano

(a weak spot in the Earth’s crust where magma comes to the

surface)

Review: Volcanoes

forms along

Subduction Zones

(where dense crust slide under less dense crust creating

magma that rises up to the surface)

Forms along convergent ( ) , divergent ( ), and hotspot boundaries

Magma - melted rock underground / Lava - melted rock that flows on the surface

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