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Grade 8 CH 5

The Nonliving Environment

QuestionAnswer
The nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate. ABIOTIC
The air surrounding earth; is 78% nitrogen, 21% oxygen, & 0.03% carbon dioxide. ATMOSPHERE
The features of the environment that are alive or were once alive. BIOTIC
A model describing how carbon molecules move between the living & nonliving world. CARBON CYCLE
The average weather conditions of an area over time, including wind, temperature, & rainfall or other types of precipitation such as snow or sleet. CHEMOSYNTHESIS
The average weather conditions of an area over time, including wind, temperature, & rainfall or other types of precipitation such as snow or sleet. CLIMATE
A process that takes places when a gas changes to a liquid; example like a glass with pop sweating. CONDENSATION
A model that shows the amount of energy available at each feeding level in an ecosystem. ENERGY PYRAMID
A process that takes place when a liquid changes to a gas. EVAPORATION
A model that shows the complex feeding relationships among organisms in a community FOOD WEB
A model describing how nitrogen moves from the atmosphere to the soil, to living organisms, & then back to the atmosphere. NITROGEN CYCLE
The process in which some types of bacteria in the soil, change nitrogen gas into a form of nitrogen that plants can use. NITROGEN FIXATION
A mixture of mineral & rock particles, the remains of dead organisms, air, & water, that forms the topmost layer of Earth’s crust & supports plant growth. SOIL
A model describing how water moves from the Earth’s surface to the atmosphere & back to the surface again through evaporation, condensation, & precipitation. WATER CYCLE
Created by: Bridgerdon
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