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Rock that forms when melted rock hardens.[image] |
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A way the surface of a mineral reflects light. |
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| A natural, solid material with particles arranged in a repeating pattern. |
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A material made up of one or more minerals. [image] |
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A rock formed by layers of sediments sqeezed and stuck together over a long time. [image] |
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The color of powder left behind when you rub a mineral against a white tile called a streak plate. [image] |
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| A mineral's ability to resist being scatched. |
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A rock changed by heat or pressure, but not completely melted. [image] |
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The slow, never-ending process of rock changes. [image] |
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Study the Moh's Hardness Scale [image] What can calcite scratch? |
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Study th Mohs' Hardness Scale. [image] What can scratch topaz? |
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Study the Mohs' Hardness Scale. [image] What is the hardest mineral? |
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| A rock with pieces of shells in it is most likely what kind of rock? |
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| What are the characteristics scientists use to classify minerals? |
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1. Hardness 2. Luster 3. Streak |
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| What is another name for Halite? |
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| What is the difference between a rock and a mineral? |
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Rocks are made up of one or more minerals. A mineral is a solid material with a repeating crystal pattern. |
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| What processes help form sedimentary rocks? |
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Weathering and erosion, and squeezing and sticking together of sediments. |
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Which type of rock are fossils found in? |
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| What is pumice, and how does it form? |
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Pumice is an igneous rock that has tiny holes caused by gases escaping from the lava as it cools. [image] |
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| What is obsidian, and how is it formed? |
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Obsidian is an igneous rock that is formed by lava, but the lava cools so quicly that the rock looks like black glass. [image] |
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| What two things can change a sedimentary rock into a metamorphic rock? |
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| How can a metamorphic rock be changed into a different metamorphic rock? |
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