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Volcanoes By Nicole Kawamoto

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Page 1: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

VolcanoesBy Nicole Kawamoto

Page 2: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

What is a Volcano?

• A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth.

Page 3: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

How are Volcanoes formed?

• Volcanoes are formed when magma from within the Earth’s mantle works its way to the surface.

• At the surface, it erupts to form lava flows.

• Over time, as it continues to erupt it will get bigger and bigger.

Page 4: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

Differences between Lava & Magma

• Lava is liquid rock that flows out of a volcano.

• Fresh lava glows hot red.

• Magma is liquid rock inside a volcano.

Page 5: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

Types of Volcanoes

1. Cinder cones- circular or oval cones made up of small fragments of lava

2. Composite- steep sided volcanoes made up of many layers of volcanic rocks

3. Shield- shaped like a bowl or shield in the middle with long slopes made by basaltic lava

4. Lava- lava domes are formed when erupting lava is too thick to flow and makes a mound as the lava piles up

Page 6: Volcanoes By Nicole Kawamoto. What is a Volcano? A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth

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