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T/F Magma is a mix of molten rock, gases and minerals crystals. T/F Sandstone is a very durable igneous rock. T/F Valuable ore deposits are found at igneous extrusions. T/F Minerals melt and crystallize at different temperatures. T/F Igneous rocks can be identified by their texture and crystal size. T/F Diamonds are some found in igneous intrusions known as kimberlites. T/F During physical weathering, chemical structure remains unchanged. T/F Cementation must occur in order for weathering to happen. T/F It takes large water flow to move large mass rocks. T/F Sediments and erosion are always carried uphill. T/F When a solution becomes saturated, precipitates begin to sink to the bottom. T/F Sedimentary rocks form from rock and mineral fragments and metamorphic rock form from existing rock. MC As water content in rocks increase, the melting point: A) Increase B) Decreases C) Stays the same Intrusive igneous rocks form: A) Fine-grained rock B) on Earth’s surface C) Coarse-grained rock Rocks are formed when magma: A) Erodes B) Crystallizes C) Weathers D) Erupts Igneous rock that cool slowly beneath the Earth’s surface are: A) Metamorphic B) Extrusive C) Intrusive D) Light-colored Igneous rocks that cool quickly on the Earth’s surface are: A) Intrusive B) Hard C) Fine-grained D) Magnetic Valuable ore deposits are usually associated with: A) Oceans B) This crusted areas C) Erosion D) Igneous intrusions T/F Lava is molten rock inside the Earth. T/F Gabbro is a light-colored rock high in silicates. T/F Dark-colored rocks contain Iron and Magnesium T/F Ultramafic rock has many layers and is very light-colored. T/F Geodes are solid extrusive igneous rocks. T/F Diamonds can be found in veins of rock called pegmatites. Vocabulary What is a clastic sedimentary rock made of? Vocabulary What is deposition? Vocabulary Explain lithification. Vocabulary What is porosity? MC Garnets, Rubies, Sapphires, Amethysts are: A) Kimberlites B) Pegmatites C) Night lights D)Alumilites Rock Cycle Sedimentary rocks are made of what? T/F Kimberlites are a valuable type of Sedimentary rock. Rock Cycle How are metamorphic rocks formed? Rock Cycle What has to happen to a sedimentary rock in order for it to form an igneous rock? Rock Cycle What does Metamorphosis mean? Rock Cycle What creates sediments? Rock Cycle What has to happen to a metamorphic rock in order for it to change into an igneous rock?
