extra pssa words
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Closing the loop | A link in the circular chain of recycling events that promotes the use of products made with recycled materials.
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| Composting | The process of mixing decaying leaves, manure and other nutritive matter to improve and fertilize soil.
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| Endangered species | A species that is in danger of extinction throughout all or a significant portion of its range.
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| 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.
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| 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 group
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| Extinction | The complete elimination of a species from the earth.
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| Fact | Information that has been objectively verified.
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| Hypothesis | An assertion subject to verification or proof as a premise from which a conclusion is drawn.
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| Inquiry | A systematic process for using knowledge and skills to acquire and apply new knowledge.
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| Law | Summarizing statement of observed experimental facts that has been tested many times and is generally accepted as true.
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| Nonrenewable resources | Substances (e.g., oil, gas, coal, copper, gold) that, once used, cannot be replaced in this geological age.
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| Patterns | Repeated processes that are exhibited in a wide variety of ways; identifiable recurrences of the element and/or the form.
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| Recycling | Collecting and reprocessing a resource or product to make into new products.
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| Regulation | A rule or order issued by an executive authority or regulatory agency of a government and having the force of law.
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| 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).
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| Succession | The series of changes that occur in an ecosystem with the passing of time.
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| Sustainability | The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained.
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| 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 speci
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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