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Stack #2222331

QuestionAnswer
Mineral A solid substance that occurs naturally in rocks or in the ground
Rock A solid substance made of one or more minerals
Ingneous rock A type of rock that forms from milted rock that cools and harderns
Sedimentary Rock a type of rock that forms when layers of sediment are pressed together
Metamorphic rock A type of rock that forms when heat or pressure change an existing rock
rock cycle the sequence of processes that change rocks from one type to another over long periods
weathering The breaking down of rocks on Earths surface into smaller pieces
Erosion The process of moving sediment from one place to another
humus The remains of decayed plants or animals in the soil
bedrock the solid rock that forms Earths surface
Horizon A layer in the soil
How do you check the streak of a mineral by rubbing a mineral across a hard surface and it leaves a powdered substance. the colored streak can help identify 2 mineral that look alike.
What are other properties of mineral shape and magnetic
Example of 2 mineral that look alike gold and pyrite( fools gold) gold has a golden streak and it its softer pyrite has a greenish black streak.
What is most of the earth crust made of? rock
Which property of soil d you check when you touch it? texture
All soil horizons share one property upper layer is topsoil and includes humus the lower horizon have partly weathered rock and mineral carried from the top the bottom horizon is bedrock
What causes sinkholes? The are a result of weathering and form when water slowly dissolves underground rock.
what causes erison Water - rivers carry water downstream and drop it at the mouths of the ocean causing waves to pick it up and leave it on the shore Wind- in deserts with few plants the wind picks up the sand and it forms sand dunes glaciers----
what causes weathering? ice, water, living things, and wind
Which layer of soil contains humus> topsoil
How are mountains formed/ when the earths plates start to push together.
3 classifications of rocks Ingnous, metamorfic and sedimentary
Created by: fitstuff21
 

 



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