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Q2 Final Exam

Final Exam Review

Solid, form in nature, crystal, made of same ingredients, inorganic Characteristics of minerals
Chemically changes rock - rusting and dissolving Chemical Weathering
Occur in the mantle and cause plate motion Convection Currents
Plates push together. Forms: mountains, volcanoes, island, trenches Convergent Boundary
Forms as sediments are deposited at the mouth of a river River Delta
Plates move apart. Forms: mid ocean ridge, rift valley Divergent Boundary
Transport or movement of rock or sediments Erosion
Mesosaurus fossils found in S. America and Africa, tropical plants fossils found in Greenland, continents fit together like a puzzle Evidence of continental drift
Rocks form from lava that cools outside Earth Extrusive Igneous
by the process of how they form How are rocks classified?
Forms from the cooling of magma Igneous Rocks
Forms from the cooling of magma inside Earth Intrusive Igneous Rocks
Least dense layer of Earth, coolest in temperature Crust
Layer that is denser than the crust, hotter than the crust, has convection currents Mantle
Layer that is denser than the crust and mantle, is liquid Outer Core
Layer that is the hottest and most dense layer of Earth, solid Inner Core
Best mixture for growing crops - sand, silt and clay Loam
Occurs when rocks and soil move suddenly Mass Wasting
Physical breakdown of rock by tree roots, ice wedging, abrasion, etc. Mechanical Weathering
Forms as existing rocks are subjected to heat and pressure Metamorphic rocks
Least reliable clue to a mineral's identity Mineral Color
Uses 1-10 to determine hardness. 10 is the hardest. Moh's Scale
The ability of air and water to pass through soil particles. Permeability
Earthquakes, volcanoes, mountains, valleys, ocean ridges, trenchs, islands Landforms/Results of Plate Movement
Luster, hardness, color, radioactivity, fluorescence, streak, cleavage, fracture, scratch, etc. Properties of Minerals
Forms from pieces of rock (sediments) that are compacted and cemented Sedimentary Rocks
Weathered rock and decayed organic material Soil composition
the layers of a soil profile Horizons
O, A, B, C, D/R Soil Profile Horizons - top to bottom
organic material - dead decaying plant and animal remains Humus
sand - largest, silt - smaller, clay - smallest Soil Particle Size
plates scrape/grind past each other, forms fault zone Transform Boundary
Breaking down of rock Weathering
Created by: tcburke