Water Cycle
An underground layer of rock that collects and stores water.
Aquifer
The process through which nitrogen in the atmosphere is converted into a form that plants can use
Nitrogen Fixation
The process by which energy is released from food so that organisms can use it for life processes.
Cellular Respiration
Organisms that get energy by eating other organisms
Consumers
The gaseous form of water
Water Vapor
Process in which water vapor changes to tiny droplets of liquid water.
Condensation
The process by which certain bacteria in the soil (or water) break down nitrogen compounds to release nitrogen gas into the atmosphere
Denitrification
Organisms that break down dead organic matter to release nutrients back into an ecosystem
Decomposers
Organisms that are able to make food from sunlight
Producers
What percentage of the atmosphere is nitrogen?
78%
Water that falls from clouds in the atmosphere to Earth's surface, such as rain, snow, hail and sleet
Precipitation
Organisms that convert nitrogen gas into nitrogen compounds that plants can use.
Bacteria
The process by which producers use light to make food
Photosynthesis
The process by which plants release water into the atmosphere
Transpiration
When a liquid changes into a vapor or gas.
Evaporation
Precipitation that is not absorbed by the soil and flows over the surface of the ground.
Runoff
Nitrogen from the atmosphere can be fixed or made more useful by bacteria as well as this weather phenomenon
Lightning
A chemical element found in coal, diamonds, plants and animals.
Carbon
A diagram that shows all of the interconnected feeding relationships in an ecosystem
Food Web
An animal that eats plants rather than other animals.
Herbivores
Water stored underground
Groundwater
A substance that is made from nitrogen which helps to give us healthy, skin, nails, DNA, muscles
Process of burning something
Combustion
Movement of water from the earth to the atmosphere and back
Water Cycle
An ordered arrangement of animals and plants in which each feeds on the one below it in the chain.
Food Chain