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Chapter 3 Voc.
Science Vocabulary and Short Answers for Chapter 3
| Question | Answer |
|---|---|
| Texture | Is the size, shape, and pattern of the rock's grains |
| Grain | A partacle of mineral or other rock that gives a rock it's texture |
| Igneous Rock | A type of rock that forms from molten lava cooling at or below Earth's surface |
| Silica | A material that forms from the elements of oxygen and slicon; Silica is formed in magma |
| Metamorphic Rock | A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions |
| Sedimentary Rock | A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed or semented together |
| Extrusive | Igneous rock that forms from lava cooling on Earth's surface |
| Intrusive | Igneous rock that forms from magma cooling on Earth's surface |
| Erosion | The process by whcih water, ice, wind, or gravity removes fragments of rock anad soil |
| Deposition | The proccess by which sediment settle out of the water or wind that is carrying it, and it is placed in a new location |
| Foliated | A term used to describe metamorphic rocks that have grains arranged in parallel layers or bands |
| Explain how the three different types of rocks are classified or identified | Scientist classify rocks by observing and identifing the color, texture, and mineral composition. This allows the scientists to classify them into one of three sections. Metamorphic, Igneous, and Sedimentary rocks. |