Chapter 13: 7Th Grade Vocabulary Cards

Front 1

features of the environment that are alive or were once alive

Back 1

Biotic

Front 2

Nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate

Back 2

Abiotic

Front 3

Air surrounding Earth; is made up of gases, including 78 percent nitrogen, 21 percent oxygen, and 0.03 percent carbon dioxide

Back 3

Atmosphere

Front 4

Mixture of mineral and rock particles, the remains of dead organisms, air, and water that forms the topmost layer of Earth's crust and supports plant growth

Back 4

Soil

Front 5

Average weather conditions of an area over time, including wind, temperature, and rainfall or other types of precipitation

Back 5

Climate

Front 6

Process that takes place when a liquid changes to a gas

Back 6

Evaporation

Front 7

Process that takes place when a gas changes to a liquid

Back 7

Condensation

Front 8

Model describing how water moves from Earth's surface to the atmosphere and back to the surface again through evaporation, condensation, and precipitation

Back 8

Water Cycle

Front 9

Process in which some types of bacteria can form the nitrogen compounds that plants need

Back 9

Nitrogen Fixation

Front 10

Model describing how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere

Back 10

Nitrogen Cycle

Front 11

Model describing how carbon molecules move between the living and nonliving world

Back 11

Carbon Cycle

Front 12

Process in which producers make energy-rich nutrient molecules from chemicals

Back 12

Chemosynthesis

Front 13

Model that shows the complex feeding relationships among organisms in a community

Back 13

Food Web