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Minerals and Rocks
Minerals
Question | Answer |
---|---|
What are minerals made of? | rocks |
What are natural, nonliving solid crystals that make up rocks? | minerals |
Each mineral has the same ______ _______ no matter where on earth it is located | chemical makeup |
The minerals found in the Earth's crust are often called, what kind of minerals | rock-forming minerals |
How are minerals classified ? | color, luster,streak, hardness and form/shape |
How does the mineral's surface reflect the light ? | luster |
What is tested by how easily a mineral can be scratched? | hardness |
A mineral with a greater number on the Mohs scale can scratched all minerals with a what kind of number? | lower |
What is the color of the powder that a mineral leaves when it is scratched on a special plate? | streak |
what is the process of nature moving sediments from on place on Earth to another ? | Erosion |
what are 3 examples of sediments ? | mudstone,sand silt, dirt, clay |
what kind of rock form when sediments are cemented together and hardened ? | sedimentary rocks |
what are 2 types of sedimentary rocks? | limestone, sandstone |
What is a gradual wearing away or changing of rock and soil caused by water, ice, temperature change, wind, chemicals or living things ? | weathering |
what are ingredients that you find in soil? | weathered rock, dead and decaying animals and plant remains |
what are some other ingredients that are found in soil? | bacteria, fungi, worms and insects |
what helps scientists estimate the age of plants and animals that lived long ago ? | fossils |
what is molten rock called ? | Magma |