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Hi, my name is Robert Bryan, a fifth grade student in Mr. Thomas' class.

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What is your project?

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Well, we have been studying volcanoes, and we have found out that there are three basic types of volcanoes.

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What are they?

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Let me show you some of the models that we've made, then.

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This one is a model of a composite volcano.

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Its eruptions vary between quiet and violent ones.

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When the volcano has a violent one, it throws out ash and dust, creating a tephra layer.

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Wow, that's cool. What are the quiet eruptions like?

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That is when the volcano erupts lava, like this.

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Wow, that's cool. What are the other two types?

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Another volcano is a cinder-cutting volcano.

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This volcano only erupts ash and dust, like this.

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And there is a shield volcano.

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Shield? You mean like what knights used to defend themselves?

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Well, sort of.

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Take a look at our model.

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As you can see, the lava flows differently.

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It forms very flat layers, and these layers have very broad and gently sloping sides.

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That's interesting. We learned a lot. Thanks for your help.

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Bye from the NASA Wildfiles Kids Club, Manhattan, Virginia.