| A | B |
|---|
| Minerals are inorganic, meaning... | they were not at any time part of living things |
| The hardest mineral on the Mohs hardness scale | diamond |
| The softest mineral on the Mohs hardness scale | talc |
| Minerals can be scratched by minerals with a _______ number on the Mohs hardness scale | higher |
| A mineral can scratch all minerals with a ________ number on the Mohs hardness scale | lower |
| Minerals who break along flat surfaces are said to have | cleavage |
| Minerals who do NOT split along flat surfaces are said to have | fracture |
| A ________ is formed by repeating patterns of a mineral's particles | crystal |
| Metamorphic rock is formed by | heat and pressure |
| Where is metamorphic rock formed? | deep underground |
| Igneous rock is formed by | cooling magma or lava |
| Igneous rock formed by magma is | instrusive rock |
| Igneous rock formed by lava is | extrusive rock |
| Molten rock beneath the surface is known as | magma |
| Molten rock that has erupted onto the surface is | lava |
| When magma cools very slowly, it forms this type of crystals | large |
| Lava that cools quickly forms this type of crystals | small or glassy |
| A rock with grains that are large and easy to see | coarse grained |
| A rock with grains that are small and may only be seen with a microscope | fine grained |
| The most abundant intrusive rock in the continental crust | granite |
| The most abundant extrusive rock. | basalt |
| Carrying away of rock fragments by water, wind or ice | erosion |
| When sediment settles out of moving water | deposition |
| when layer after layer of sediment is deposited, and the weight of the layers presses them together | compaction |
| when dissolved minerals crystallize and glue particles of sediment together | cementation |
| The color of a mineral when rubbed against unglazed tile | streak |
| the metallic shine of some minerals | luster |
| When 2 or more elements are chemically combined, they form a... | compound |
| A rock that has grains arranged in parallel layers is... | foliated |
| A rock with no parallel bands is... | nonfoliated |
| Limestone and sandstone in the bedrock is evidence an area was once... | under a sea |
| Where is sedimentary rock formed? | on Earth's surface |
| Rock that is very dense and foliated is likely what type of rock? | metamorphic |
| Why might metamorphic rock be more dense than sedimentary rock? | It has been pressed together by intense heat and pressure |
