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Science Explosion 02
BJU 6th Science - Chapter 1
| Question | Answer |
|---|---|
| lithosphere | The crust and upper area of the earth’s mantle |
| plate | A large piece of the earth's crust that floats on the melted rock in the earth's mantle |
| theory of plate tectonics | The idea that Earth's crust is made up of moving plates |
| plate boundary | The place where plates meet |
| earthquake | An event that occurs when rocks along the plate boundaries shift suddenly and release their stored energy |
| fault | A break in the earth's surface along which rock can move |
| magma | The molten rock and gases beneath the earth's surface |
| volcano | A crack in the earth's crust through which molten rock comes to the surface |
| volcanologist | A scientist who studies volcanoes |
| magma chamber | Pockets of molten rock deep in the earth's lithosphere |
| lava | Magma that has broken through the surface of the earth |
| vent | The opening in the surface of the earth through which lava flows |
| crater | The bowl shape at the top of a main vent through which lava flows |
| ash | Bits of crushed rock propelled from an erupting volcano (particles smaller than 2 mm) |
| cone | The funnel-shaped mound of a volcano |
| Ring of Fire | A ring of volcanoes found in an area around the Pacific Ocean |
| hot spot | A volcano that occurs where a pool of intensely hot magma rises toward the surface, melting rock until it breaks through the crust |
| cinder | Bits of ash and lava |
| tephra | A mixture of cinder, ash, and rock |
| pyroclastic flow | An avalanche of red-hot dust and gases that races down the sides of some volcanoes |
| vog | Volcanic fog or gases (deadly) |
| debris flow | Mud and rock fragments that surge down a mountain when part of it collapses |
| igneous rock | Rock formed as magma and lava harden |
| hot spring | Water that rises to the earth's surface as it is heated by a magma pool |
| geyser | A spring that periodically blows steam and hot water into the air |
| mud pot | A hot spring that has more mud than water |
Created by:
MrsDunham
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