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69 Cards in this Set
- Front
- Back
Do we use more water than given or less?
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More!
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Uses of water at home
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Dishwasher, washing machine, shower, toilet, brushing teeth, ice maker, water lawn
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Uses of water in industry?
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Part of the manufacturing product, cools machines, flushes out mines.
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Uses of water in Transportation?
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boat, barge, placement of cities (good to be on water)
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What is the single largest use of water in the US?
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IRRIGATION!!
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What are uses of water in Recreation?
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Swim, Ski, Skate, boating
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Water is naturally recycled in...
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The Water Cycle
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Water are two examples/reasons of water shortages?
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Natural Case, too high of a demand.
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What gets water where it needs to go from a well?
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Duct
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What is the defintion of conservation?
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using less of a resource
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What is the RRR
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Reduce, Reuse, Recycle
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What are some examples of DESALINATION?
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remove salt from water ($$$), distillation, freeze salt out, use ice bergs
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How can you simply treat driking water? Complex?
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Simple= Filter, such as Brita
Complex= Water Treatment Plant |
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What are disease causing organisms in water?
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Coliform Detection (human & animal waste) *E. Coli
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What is hardness of water?
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A measure of 2 minerals, Calcium and Magnesium.
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How does water get hard?
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Comes from the ground where the water flows through whether it had calcium and magnesium.
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What are some difficulties with hard water?
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Hard water is difficult to clean with and can clog your pipes.
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What is the pH scale?
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The pH scale measures water's acidity.
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What are the ranges in the pH scale?
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1-14, 0-6.9 is acidic, 7 is neutral, 7.1-14 is basic. A lemon is acidic, and baking soda is basic.
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The Acidity is the pH, pH is...
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A measurement of how acidic or basic the water is.
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Who is responisble to develop water quality standards? *they set concentration limits
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EPA = Enviromental Protection Agency
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What does a waste water treatment plant do?
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Makes water safe to return to enviroment. *flown into pipes which are sanitary sewers.
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What is water quality?
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A measure of different substances in water. *some are harmful *some aren't harmful
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Your water can be..
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Public or Private
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What are indications of Water Quality?
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Color & Odor
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What is the Septic System?
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The Septic System is where your waste goes.
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What are the drinking water treatment steps?
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1. Filtration
2. Coagulation- alum is the chmical used to do this 3. Chloration-kills micro-organisms. 4. Aeration- removes bad taste & smell, you can add minerals & flouride. 5. Tested 6. Water Distribution 4. |
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Why does water move up and down?
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The pressure inside
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What are the steps of the Waste Water Treatment Plant?
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1. Preliminary treatment
2. Primary treatment 3. Secondary treatment 4. Additional treatment |
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What is Water Pollution?
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The addition of any substance that has a negative effect on water or living things that depend on the water.
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What are Pollutants?
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The substances that cause water pollution.
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How do you classify pollutants sources?
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Classified by how they enter the water.
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What is Point Source?
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Specific pollutant source can be identified. Example=pipes
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What is Nonpoint Source?
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Widely spread source of pollution taht can't be traced back to a specific origin. Example= runoff form field or street.
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Some pollutants can build up in bodies. Two examples?
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Pesticides and DDT- food chains, animals consume other animals with DDT. It can cause birth defects and cancer.
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What is chlorea caused by?
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Bacteria that live in human wastes.
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Treatment kills bacteria, but what doesn't it kill?
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Viruses or parasites. They resist chlorine.
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During flooding, what happens to the extra water?
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sewers can overflow and run into storm sewers which lead derectly to surface water.
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What ares some problems with sewage in rural areas?
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If your septic tank is near is stream it can seep into it. Septic Tank too near a hill it can flow down into a well. Animal wastes can runoff pastures.
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What are some industrial wastes?
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Laws cntrl point source pollution, but it still happens, burried containers have rusted and are leaking which is a nonpoint source.
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What do factories create?
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smoke and exhaust from burning coal that can created acid rain. Oil pollutes too.
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What is heat pollution?
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Water in factories that cools equpment andthe hot water is poured back into surface water. Many organisms have a small heat range.
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What does runoff from farms do?
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Causes algae to grow, blocks sunlight and slows the flow of water. Nutrients encourage plant growth, carries pollutants from farms such as pesticides.
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What does runoff from roads do?
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rain can carry oil, antifreeze, gas, salt on winter roadsd,etc., into surface water adn ground water. *Nonpoint source
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What are pollution sollutions?
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Clean up and prevent new pollution. Clean up began in the 1960s.
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Cleanup pollution?
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living organisms filter out and breakdown waste materials, bacterial can clean up toxic spills such as oil spills. Natural and artificial wetlands to filter.
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Pollution Prevention?
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Recycle water, use less chemicals, prevent animal waste runoff.(or use water for irrigation instead of the waste), dispose of toxic wastes properly (not down the drain)
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What is Kinetic energy?
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Energy from movement
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What is Potential energy?
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Energy waiting to be used. It can be due to the position. Example- water stored in resevoir.
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How can water be used to produce elctricity?
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Hydroelectric power
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How can you get Hyroelectric Power?
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Build a dam across a river, hold back water and become a lake. (EPB)
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Water can be released and moved downhill through...
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turbines which is a type of kinetic energy.
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Turbines can convert _______ energy into electricity
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Kinetic
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__% of the world's electricity is hydroelectric power. U.S. uses __% of that.
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20% world
9% US |
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Pros of a dam?
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clean, safe, efficient, water is free not expenisve, naturally recycles through water cycle, doesn't add air pollution.
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Cons of a dam?
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expensive to BUILD, fish can't migrate because dam is a barrier, homes & farms flooded, destroys historical sites, only works if land is suitable- you must have a valley and fast river, present organisms can't survive.
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what is plate tectonics?
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a theory based on Earth Science
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why do volcanoes, earthquakes happen?
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plate tectonics
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true or false?
the continents were once one whole continent |
true!!!
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what is a theory
(hint) they can be wrong! |
a great deal of evidence supported by predictions...blah blah blah!!! hehe
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who first observed continental drift?
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Frances Bacon
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who proposed the idea of continental drift?
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Alfred Wegener 1912
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what was the one continent called?
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Pangea
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do scientists actually know how the continents got the way they do now?
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no...but they can guess
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what are some evidences from land features?
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mountain chains, coal deposits, and glaciers
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how is evidence from fossils explained?
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they study the places that they found the fossils and traced it into a path of where the dinosaurs roamed
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how do they explain evidence from climates?
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a hot natured plant found in a cold climate must have grown near the equator
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what is the real reason why there is a continental drift?
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convection in the mantle
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what happened to Alfred Wegner??/
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nobody knows!!oooooooo spooky!!!!
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