1. Volcanoes: Nature’s Awesome Power by Maryann Dobeck

2. Introduction
Lava melted rock that has erupted from a volcano onto earths surface. According to the Hawaiian myth the goddess of volcanoes named Pele made mountains blow their top. The scientists today know that the forces of nature because volcanic eruptions.

3. Inside Story
The core of the earth is iron and nickel. The outer core is liquid and the inner core is solid. Plate tectonics believe that the entire crust and upper mantle are Most of the world’s erupting volcanoes occur along the edges or boundaries of earth’s plates

4. Volcanoes
Vents a weak spot in the earth’s crust through which magma can rise to the surface
Three kinds of materials may erupt from a volcano: lave, tephra, and gasses
The terms pahoehoe and aa are Hawaiian words that describe the lava flow

5. Pyroclastic Flow
Pyroclastic flow a tall column of pyroclastic materials and gasses that collapses and races down the slopes of the volcano at dangerous speeds
When a volcano erupts it can spew out anything from fine particles of dust to huge blocks of rocks as big as a house
All volcanoes release gages during an eruption. The pressure of the gas in the magma causes the eruption. The pressure of the gain the magma causes the eruption.

6. Ocean floor
The tectonic plates on the ocean floor are thinner than the plates on land.
Some volcanoes rise more than a mile above the ocean floor.
Each of Hawaii islands is actually the tip of an underwater volcano.

7. When volcanoes erupt
Scientist call the least violent kind of eruption a Hawaiian eruption.
In a Strombolian eruption, gas periodically escapes from the magma sending out volcanic material that forms a cinder cone.
A pyroclastic flow temperature of the flow to have reached 1,300 degrees Fahrenheit.

8. Famous volcanoes
Mount Vesuvius erupted ash, and lava buried the towns of Pompeii, and Herculaneum and Stabiae.
Krakatoa had a powerful eruption. The blast was so loud people 3,000 ml. away heard it.
Mount Pinatubo erupted in a powerful blast 10 times larger than the eruption of Mt. St. Helens.