1. Abiotic: A nonliving factor or element (e.g.,

1. Abiotic: A nonliving factor or element (e.g.,

1. Abiotic: A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral). 2. Acid deposition: Precipitation with a pH less than 5.6 that forms

in the atmosphere when certain pollutants mix with water vapor. 3. Allele: Any of a set of possible forms of a gene.

4. Biochemical conversion: The changing of organic matter into other chemical forms. 5. Biological diversity: The variety and complexity of species present

and interacting in an ecosystem and the relative abundance of each. 6. Biomass conversion: The changing of organic matter that has been produced by photosynthesis into useful liquid, gas or fuel.

7. Biomedical technology: The application of health care theories to develop methods, products and tools to maintain or improve homeostasis.

8. Biomes: A community of living organisms of a single major ecological region. 9. Biotechnology: The ways that humans apply biological concepts

to produce products and provide services. 10. Biotic: An environmental factor related to or produced by living organisms.

11. Carbon chemistry: The science of the composition, structure, properties and reactions of carbon based matter, especially of atomic and molecular systems; sometimes referred to as organic chemistry.

12. Closing the loop: A link in the circular chain of recycling events that promotes the use of products made with recycled materials.

13. Commodities: Economic goods or products before they are processed and/or given a brand name, such as a product of agriculture. 14. Composting: The process of mixing decaying leaves, manure and

other nutritive matter to improve and fertilize soil. 15. Construction technology: The ways that humans build structures on sites.

16. Consumer: 1) Those organisms that obtain energy by feeding on other organisms and their remains.

2) A person buying goods or services for personal needs or to use in the production of other goods for resale.

17. Decomposer: An organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby making nutrients accessible to other organisms; examples of decomposers include fungi, scavengers, rodents and other animals.

18. Delineate: To trace the outline; to draw; to sketch; to depict or picture. 19. Desalinization: To remove salts and other chemicals from sea

or saline water. 20. Dichotomous: Divided or dividing into two parts or classifications.

21. Ecosystem: A community of living organisms and their interrelated physical and chemical environment.

22. Electronic communication: System for the transmission of information using electronic technology (e.g., digital cameras, cellular telephones, Internet, television, fiber optics). 23. Embryology: The branch of biology dealing with the development

of living things from fertilized egg to its developed state. 24. Endangered species: A species that is in danger of extinction throughout all or a significant portion of its range.

25. Engineering: The application of scientific, physical, mechanical and mathematical principles to design processes, products and structures that improve the quality of life.

26. Environment: The total of the surroundings (air, water, soil, vegetation, people, wildlife) influencing each living beings existence, including physical, biological and all other factors; the surroundings of a plant or animals including other plants or animals, climate and location.

27. Enzyme: A protein that increases the rate of a chemical reaction without being changed by the reaction; an organic catalyst. 28. Equilibrium: The ability of an ecosystem to maintain stability among its biological

resources (e.g., forest, fisheries, crops) so that there is a steady optimum yield. 29. Ergonomical: Of or relating to the design of equipment or devices to fit the human bodys control, position, movement and environment.

30. Evolution: A process of change that explains why what we see today is different from what existed in the past; it includes changes in the galaxies, stars, solar system, earth and life on earth. Biological evolution is a change in hereditary characteristics of groups of organisms over the course of generations.

31. Extinction: The complete elimination of a species from the earth.

32. Fact: Information that has been objectively verified. 33. Geologic hazard: A naturally occurring or man-made condition or phenomenon that presents a risk or is a potential danger to life and property (e.g., landslides, floods, earthquakes, ground subsidence, coastal and beach

erosion, faulting, dam leakage and failure, mining disasters, pollution and waste disposal, sinkholes). 34. Geologic map: A representation of a region on which is recorded earth information (e.g., the distribution, nature and age relationships of rock units and the occurrences of structural

features, mineral deposits and fossil localities). 35. Groundwater: Water that infiltrates the soil and is located in underground reservoirs called aquifers.

36. Hazardous waste: A solid that, because of its quantity or concentration or its physical, chemical or infectious characteristics, may cause or pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported or disposed of, or otherwise managed.

37. Homeostasis: The tendency for a system to remain in a state of equilibrium by resisting change.

38. Hydrology: The scientific study of the properties, distribution and effects of water on the earths surface, in the soil and underlying rocks and in the atmosphere. 39. Hypothesis: An assertion subject to verification or proof as a

premise from which a conclusion is drawn. 40. Incinerating: Burning to ashes; reducing to ashes.

41. Information technology: The technical means that humans create to store and transmit information. 42. Inquiry: A systematic process for using knowledge

and skills to acquire and apply new knowledge. 43. Instructional technology: Any mechanical aid (including computer technology) used to assist in or enhance the process of teaching and learning.

44. Integrated pest management: A variety of pest control methods that include repairs, traps, bait, poison, etc. to eliminate pests.

45. Law: Summarizing statement of observed experimental facts that has been tested many times and is generally accepted as true.

46. Lentic: Relating to or living in still water. 47. Lotic: Relating to or living in actively moving water.

48. Manufacturing technology: The ways that humans produce goods and products. 49. Mitigation: The policy of constructing or creating man-made

habitats, such as wetlands, to replace those lost to development. 50. Mitosis: The sequential differentiation and segregation of replicated chromosomes in a cells nucleus that precedes complete cell division.

51. Model: A description, analogy or a representation of something that helps us understand it better (e.g., a physical model, a conceptual model, a mathematical model).

52. Niche (ecological): The role played by an organism in an ecosystem; its food preferences, requirements for shelter, special behaviors and the timing of its activities (e.g., nocturnal, diurnal), interaction with other organisms and its habitat.

53. Nonpoint source pollution: Contamination that originates from many locations that all discharge into a location (e.g., a lake, stream, land area). 54. Nonrenewable resources: Substances (e.g., oil, gas, coal, copper,

gold) that, once used, cannot be replaced in this geological age. 55. Nova: A variable star that suddenly increases in brightness to several times its normal magnitude and returns to its original appearance in a few weeks to several

months or years. 56. Patterns: Repeated processes that are exhibited in a wide variety of ways; identifiable recurrences of the element and/or the form.

57. Pest: A label applied to an organism when it is in competition with humans for some resource.

58. Point source pollution: Pollutants discharged from a single identifiable location (e.g., pipes, ditches, channels, sewers, tunnels, containers of various types). 59. Radioactive isotope: An atom that gives off nuclear radiation and has the same

number of protons (atomic number) as another atom but a different number of neutrons. 60. Recycling: Collecting and reprocessing a resource or product to

make into new products. 61. Regulation: A rule or order issued by an executive authority or regulatory agency of a government and having the force of law.

62. Renewable: A naturally occurring raw material or form of energy that will be replenished through natural ecological cycles or

sound management practices (e.g., the sun, wind, water, trees). 63. Risk management: A strategy developed to reduce or control the chance of harm or loss to

ones health or life; the process of identifying, evaluating, selecting and implementing actions to reduce risk to human health and to ecosystems. 64. Scale: Relates concepts and ideas to one another by some measurement (e.g.,

quantitative, numeral, abstract, ideological); provides a measure of size and/or incremental change. 65. Science:Search for understanding the natural world using

inquiry and experimentation. 66. Shredder: Through chewing and/or grinding, microorganisms feed on non-woody coarse particulate matter, primarily leaves.

67. Stream order: Energy and nutrient flow that increases as water moves toward the oceans (e.g., the smallest stream (primary) that ends when rivers flow into oceans).

68. Succession: The series of changes that occur in an ecosystem with the passing of time. 69. Sustainability: The ability to keep in existence or maintain. A

sustainable ecosystem is one that can be maintained. 70. System: A group of related objects that work together to achieve a desired result.

71. Technological design process: Recognizing the problem, proposing a solution, implementing the solution, evaluating the solution and communicating the problem, design and solution.

72. Theory of evolution: A theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modification in successive generations.

73. Theory: Systematically organized knowledge applicable in a relatively wide variety of circumstances; especially, a system of assumptions, accepted principles and rules of procedure devised to analyze, predict or otherwise explain the nature or behavior of a specified set of phenomena.

74. Tool: Any device used to extend human capability including computer-based tools.

75. Topographic map: A representation of a region on a sufficient scale to show detail, selected manmade and natural features of a portion of the land surface including its relief and certain physical and cultural features; the portrayal of the position, relation, size, shape and elevation of the area. 76. Transportation systems: A group of related parts that function

together to perform a major task in any form of transportation. 77. Trophic levels: The role of an organism in nutrient and energy flow within an ecosystem (e.g., herbivore, carnivore, decomposer).

78. Waste Stream: The flow of (waste) materials from generation, collection and separation to disposal.

79. Watershed: The land area from which surface runoff drains into a stream, channel, lake, reservoir or other body of water; also called a drainage basin. 80. Wetlands: Lands where water saturation is the dominant factor determining the nature of

the soil development and the plant and animal communities (e.g., sloughs, estuaries, marshes).

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