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8th Grade Science

Earth Science Weathering Part 2

QuestionAnswer
loose, weathered material in which plants grow soil
solid layer of rock beneath the soil bedrock
Soil is a mixture of ????? rock particles, minerals, decayed organic material, water and air
dark colored substance that forms from plant/animal decay humus
layers of leaves on the ground litter
process in which organisms that live in the soil turn dead organic material into humus decomposition
organisms that breakdown dead organisms/plants decomposers
mix air into soil aerate
measure of how well the soil supports plant growth fertility
soil that made up equal parts of sand, silt and clay loam
crumbly dark brown soil that is a mixture of humus, clay, and other materials topsoil
layer under topsoil which consists of little humus subsoil
3 uses of land which change the land mining development agriculture
something in nature used by humans natural resource
soil in which the nutrients have all been used and is no longer fertile exhausted
once fertile land has become desert like desertification
things that we can do to save soil soil conservation
3 types of soil conservation crop rotation, conservation plowing, and terracing
all the waste materials produced in homes, businesses, and other places municipal solid waste
3 methods of handling solid waste bury it, burn it, and recycle it
hole in the ground where waste is deposited landfill
liquid pollution caused by rain water dissolving chemicals in garbage leachate
burning of waste incineration
process of reclaiming raw materials and reusing them recycling
4 categories of recycling products metal, glass, paper, and plastic
any material that can be harmful to human health or to the environment if not properly disposed of hazardous waste
5 types of hazardous waste toxic, explosive, flammable, corrosive, radioactive
4 factors that determine the effects of hazardous waste on a person how harmful the substance, how much of the substance, how long exposed, person's age, weight,and height
Created by: clt088
 

 



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