Earth's Forces-Volcanoes

Earth's Forces-Volcanoes

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Constructive Force

is a force the builds up or raises the surface of the Earth

Destructive Force

is a force that tears down or lowers the surface of the Earth

Fill in the Blank

Which force BUILDS UP earth's surface?

Fill in the Blank

Which force TEARS DOWN earth's surface?

What is a Volcano?

a mountain or hill, that allows or allowed lava, rock fragments, hot vapor and gas to erupt through the earth's crust

Multiple Choice

Volcanoes create new land on the Earth’s surface when –

• lava flows then cools and hardens to form rock.

• an eruption destroys the side of a mountain.

• magma forms giant underground chambers.

• saltwater touches lava and changes into steam.

How do volcanoes form?

• Lava erupts from the crater or vent

• The lava cools and hardens

• A new layer or rock is formed (basalt)

• This will repeat for many layers

Multiple Choice

Volcanoes create new land on the Earth’s surface when –

• lava flows then cools and hardens to form rock.

• an eruption destroys the side of a mountain.

• magma forms giant underground chambers.

• saltwater touches lava and changes into steam.

Multiple Choice

When magma comes out of a volcano it is called...

• fire

• lava

• smoke

• igneous

Fill in the Blank

What is the rock formed from lava?

Multiple Choice

How can a volcanic eruptions change Earth's surface?

• create valleys

• create new land

• make water warmer

• move mountains

Multiple Choice

What do you call melted rock below the Earth's surface?

• epicenter
• fault
• focus
• magma

Where can you find volcanoes?

• On land

• In the water

• Ring of Fire

• Islands

Multiple Choice

Vocanoes are found...

• on land
• under water
• on islands
• all of the above

Multiple Choice

Which is NOT a reason volcanoes are so dangerous:

• the ash in the sky makes it difficult to breath

• the hot magma can burn many things

• the ash in the sky makes it difficult to see

• volcanoes can lie dormant for many years

Open Ended

In your own words, describe how volcanoes change the land.

Multiple Select

Are volcano eruptions constructive forces or destructive forces?

• Constructive Force

• Destructive Force