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Rocks and Volcanoes
CA Earth Science Standards 3C, 3E and 3F
| Question | Answer |
|---|---|
| viscosity | stickiness |
| igneous rock | lava or magma cooled down |
| lava | molten rock on the earth's surface |
| magma | molten rock under the earth's surface |
| shield volcano | gently sloped volcano oozing basaltic lava |
| cinder cone volcano | steep sided volcano exploding granitic lava |
| hot spot | an area in the mantle hotter than usual, creating volcanoes far from plate boundaries |
| sedimentary rock | formed from cementation layered sediment |
| metamorphic rock | formed from heat and pressure on pre-existing rocks |
| fragmental structure | rock structure that breaks apart easily |
| fossil | evidence in a rock of life in the past |
| sediment | pieces of rock |
| composite volcano | erupts explosively as well as with flowing lava |