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topic 3
earths interior,rocks and minerals
| Term | Definition |
|---|---|
| seismic | an elastic wave in the earth produced by an earthquake or other means |
| crust | the outermost layer of a planet |
| mantle | layer between the crust and the outer core |
| lithosphere | the rigid outer part of the earth, consisting of the crust and upper mantle |
| asthenosphere | the upper layer of the earth's mantle, below the lithosphere |
| outer core | a fluid layer between the mantle and the inner core |
| inner core | earths inner most layer |
| evidence | information or data that makes a conclusion true |
| elements | a part or aspect of something abstract, especially one that is essential or characteristic |
| mineral | solid substances that occur naturally |
| crystal | a solid where the atoms form a periodic arrangement |
| crystallization | form or cause to form crystals |
| organic | related to living matter |
| igneous rock | one of the three main rock types and formed through the cooling and solidification of magma or lava |
| sedimentary rock | one of the three main rock types that are formed by the deposition of material at the Earth's surface and within bodies of water |
| sediment | matter that settles to the bottom of a liquid |
| metamorphic rock | one of the three main rock types where rock that was once one type of rock but has changed to another under the influence of heat, pressure, or some other agent |
| apply | to put information to use |
| rock cycle | a cycle that describes the transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. |
| process | a series of actions or steps taken in order to achieve a particular goal |
| source | a place, person, or thing from which something comes or can be obtained |