100

Matter

is any substance that occupies space and has mass. 

100

Population Density

number of individuals of a particular species within a specific area. 

100

Coal

is formed from the remains of trees, ferns, and other plants. 

100

Chemical Energy

energy stored in the bonds of ATP.

100

Ecosystem

all of the living organisms and the physical environment.

200

Food Webs

illustrate how energy and matter flows directionally through the ecosystems. 

200

Age Structure

number of individuals in different age groups. 

200

Kinetic Energy

energy in motion.

200

Liquid Biomass

energy source that is produced from plants. 

200

Biome

similar ecosystems that share similar climates.

300

Anthropogenic

systems are defined as man-made.

300

Population Size

total number of individuals.

300

Energy

the ability to do work.

300

Organism

one living thing within a species.

300

Biosphere

all of the biomes, Earth.
400

Emigration

migration of individuals out of the country.

400

Population Growth

the change in number of individuals in a given area.

400

Potential Energy

energy that is stored for later use.

400

Population

many organisms that are the same species.

400

Biodiversity

a variety of living organisms on Earth.

500

Dispersion

the way individuals are spaced within the area.

500

Demography

the statistical study of the changes in a population.
500

Turbine

tool that is critical for the generation of wind power.

500

Community

all of the living organisms that live in the same area. 

500

Weather: / Climate:

day to day patterns; long term seasonal pattern

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