| Term | Definition |
|---|
| Abiotic factors | non-living organisms of an ecosystem, such as heat, water, and rocks |
| aerobic respiration | energy releasing biochemical reactions that use oxygen. |
| air | a mixture of gases; mostly nitrogen and oxygen. |
| anaerobic respiration | energy releasing biochemical reactions that do not need oxygen to occur. |
| atom | a tiny particle of matter. |
| biotic factors | the living things in an ecosystem. |
| carbohydrates | chemical compounds containing carbon, hydrogen, and oxygen. Sugar is a carbohydrate. Carbohydrates store energy in their chemical bonds. |
| carbon cycle | the movement of carbon atoms through an ecosystem between living organisms as well as the non-living part of the environment. |
| carbon dioxide/oxygen cycle | the recycling of carbon dioxide and oxygen between organisms and the air. |
| carbon dioxide | a chemical compound made from one atom of the element carbon and two atoms of the element oxygen. The chemical formula for carbon dioxide is CO2. |
| cellular respiration | the process of releasing energy stored in carbohydrates. Respiration produces carbon dioxide and water. Respiration usually requires oxygen in which case it is usually called aerobic respiration or aerobic cellular respiration. |
| chemical compound | a molecule composed of atoms of two or more different elements. |
| condensation | the formation of snow or rain from water vapor. |
| decomposers | breaks down dead animals or plants |
| dentrification | the process by which bacteria cause nitrogen gas to be released back into the environment. |
| ecology | the study where animals and plants live and interact. |
| ecosystem | were animals and plants live and interact. |
| element of matter | basic element of matter. |
| energy | the ability to do work. heat and sunlight are examples. |
| extinction | where a whole species is gone completely. |
| food chains | links were one animal eats another all the way down to the producers. |
| food producers | the plants that make food food for themselves. |
| habitat | were an animal lives. |
| helium | a trace element in the air. |
| humus | soil that is made of organic materials. |
| kyrpton | trace element in the air. |
| legumes | plants that get nitrogen fixing bacteria in their roots. |
| lichens | an organism that grows on rocks and break them down. |
| matter | the material of the universe . |
| nitrogen | needed in DNA and protein molecules. |
| xeon | a trace element of the air |
| water cycle | the natural way of water purification |
| solvent | a liquid that can dissolve another element. |
| water cycle | the natural way of purifying water |
| ozone | a molecule made from three atoms of oxygen |
| legume | a plant that is in the pea family. |
Combine with other sets
Share on Facebook
Share on MySpace
!