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ES-Rock Cycle, pt 1
Unit5: Rock Cycle, Chapter 5 Glencoe
| Question | Answer |
|---|---|
| What kind of rocks are formed from the crystallization of magma? | Igneous |
| Rock formed from lava cooling outside the volcano is called | Extrusive |
| Rock formed from magma cooling beneath the earth's surface is called | Intrusive |
| The second most common element in the earth's crust is a. Oxygen, b. Aluminum, c. Carbon, or d. Silicon? | d. Silicon |
| True or False: Extrusive Igneous rock forms larger crystals than Intrusive. | False |
| True or False: More Silica in Igneous Rock makes it darker. | False: Felsic (light-colored) rocks have the highest silica content. |
| Bowen's Reaction Series shows that as magma cools the rocks being formed are higher or lower in silica? | higher - Silica typically crystallizes at a lower temperature, so as minerals solidify and are extracted at higher temperatures it increases the concentration of the Silica in the Magma. |
| To which of the following groups of igneous rocks do Basalt and Gabbro belong? a. Light Colored (silica) b. Dark colored (metals) | b. Dark colored |
| To which of the following groups of igneous rocks does Granite belong? a. Light Colored (silica) b. Dark colored (metals) | a. Light Colored |
| Minerals that contain a useful substance that can be mined at a profit is called a/an: | Ore |