Tuesday, August 12, 2008

We made a Volcano

Hello Everyone!

We did a really cool science project today.
We made a Volcano.
Click Here to learn how to make a Volcano

The girls had a blast making the Volcano, and are very eager to show their dad when he gets home.

Here a
re a few Pictures of our Volcano.

What is a Volcano?
Let's first take a look at the earth. The earth is made up of 4 main layers-the inner core, the outer core, the mantle and the crust. The crust is where we live, on the surface of the earth. Below the crust lies the mantle, which is made up of solids, liquids and gases.


Types of Volcanoes(click here for a unit study on volcanoes)
Volcanoes come in all different shapes and sizes, which is often a result of the types of eruptions that occur.
Composite Volcanoes (also called Stratovolcanoes) are the most familiar type of volcano. They are tall, symmetrical, and slope steeply towards a small summit crater. They are usually formed by multiple Plinian eruptions, which omit large amounts of lava in violent, tall eruptions which add quickly to the height of the volcano.
Scoria Cone Volcanoes (also called cinder cone volcanoes) are small cones which are often the result of a single eruption event-usually a strombolian eruption. These types of volcanoes are the most common.
Shield Volcanoes are low, wide volcanoes, formed by low viscosity, slow moving lava which spreads over a many kilometers.



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