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6 Sc Soil Weathering

6th Grade Science Weathering and Soil Vocabulary

QuestionAnswer
WEATHERING THE PROCESS THAT BREAKS DOWN ROCK INTO SMALLER AND SMALLER FRAGMENTS.
MECHANICAL WEATHERING PROCESS THAT BREAKS APART ROCKS WITHOUT CHANGING THEIR CHEMICAL COMPOSITION.
ICE WEDGING CYCLE OF WATER FREEZING AND THAWING WHICH BREAKS UP ROCKS AND ROADS.
CHEMICAL WEATHERING PROCESS THAT CHANGES THE CHEMICAL COMPOSITION OF ROCKS AS MINERALS ARE DISSOLVED FROM ROCKS.
OXIDATION OCCURS WHEN A MATERIAL IS EXPOSED TO OXYGEN AND WATER AND IS CHEMICALLY CHANGED.
CLIMATE PATTERN OF WEATHER THAT OCCURS IN A PARTICULAR AREA OVER MANY YEARS.
SOIL A MIXTURE OF WEATHERED ROCK, ORGANIC MATTER, MINERAL FRAGMENTS, WATER AND AIR THAT SUPPORTS VEGETATION.
HUMUS DARK-COLORED DECAYED ORGANIC MATTER IN SOIL.
SOIL PROFILE THE DIFFERENT LAYERS OF SOIL.
SOIL HORIZON A SOIL LAYER IN THE SOIL PROFILE.
LITTER LEAVES, TWIGS, AND OTHER ORGANIC MATTER IN THE A HORIZON.
TOPSOIL THE TOP, OR A HORIZON, LAYER OF SOIL.
LEACHING REMOVAL OF MINERALS THAT HAVE BEEN DISSOLVED IN WATER.
EROSION PROCESS THAT WEARS AWAY SURFACE MATERIALS AND MOVES THEM FROM ONE PLACE TO ANOTHER.
STRIP CROPPING PLANTING A CROP THAT COVERS THE GROUND ALTERNATING WITH A CROP THAT LEAVES EXPOSED LAND.
NO-TILL FARMING PLANTING WHERE PLANT STALKS ARE LEFT IN THE FIELD ALL YEAR.
ORGANIC MATTER MATERIAL FROM ONCE-LIVING ORGANISMS.
Created by: smurray817
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