61. CNN.com - Sci-Tech - Report: Acid Rain Impact Remains A Concern - March 26, 2001 CNN http://cnn.com/2001/TECH/science/03/26/acid.rain.report/index.html

MAIN PAGE WORLD U.S. WEATHER ... ABOUT US CNN TV what's on show transcripts CNN Headline News CNN International ... askCNN EDITIONS CNN.com Asia CNN.com Europe set your edition Languages Spanish Portuguese German Italian Danish Japanese Korean Arabic Time, Inc. Time.com People Fortune EW Report: Acid rain impact remains a concern Acid rain dissolves forest nutrients much faster than previously believed, posing a threat to future forest productivity, according to a study In this story: Acid rain has long history Long-term research used RELATED STORIES, SITES WOODSTOCK, New Hampshire (CNN) A new study on acid rain concludes that, while some affected areas have seen improvement, the impact of emissions may be much more complicated than previously understood. The study, led by Charles Driscoll of Syracuse University, found that despite major progress in decreasing U.S. emissions of acid rain-producing chemicals, 40 percent of the lakes and streams in New England and upstate New York continue to occasionally post acidity levels that harm plant and animal life. Fifteen percent of those waterways still have chronically high acid levels. MESSAGE BOARD Environmental issues Acid precipitation carried to earth in rainfall, snow, or fog is a byproduct of the burning of fossil fuels. Airborne compounds like sulfur dioxide and nitrogen oxides alter the chemical balance of soils and waterways, turning them from chemically neutral to acidic.

62. Acid Rain Crossword: Surfing The Net With Kids acid rain Crossword Puzzle. acid rain Crossword by Barbara J. Feldman.You need Java enabled to view the crossword applet. http://www.surfnetkids.com/games/acidrain-cw.htm

...Click for Menu... ~~ Home ~~ Light a Fire Quotations How to Add Games Email Book Clubs Book Store Coupons Calendar Blog Free Web Content Games Jokes Newsletters Parents Postcards Printables Screensavers Suggest a Site Tell a Friend Top Ten Pages Topic Directory ~~ Search this Site Arts, Crafts, Music Computers, Internet Hobbies, Sports Geography Holidays, History Language Arts Math Parents, Teachers Pre-K and K Science, Animals Link to Us From my Mailbox My Bio Ad Rates Write Me Visit My Office Blog Book Club Calendar Coupons ... Webmasters Acid Rain Crossword by Barbara J. Feldman You need Java enabled to view the crossword applet. Printable Version of this Game Answer Sheet Free Game Offers Download a free trial version of 3D Tetris Revolution for Windows. Free games and full-blown trial video game downloads for Windows. Email to a Friend Home More Kids Games How to Add Games to Your Site If you have an email address... you can get my educational website recommendations in your mailbox every week. My Privacy Pledge: your email address is never shared with anyone. Sponsored Links Internet Safety and Spy Software, Net Nanny and More

63. CNN.com - Acid Rain Still A Problem - August 23, 2001 CNN http://cnn.com/2001/TECH/science/08/23/acid.rain/index.html

MAIN PAGE WORLD U.S. WEATHER ... ABOUT US CNN TV what's on show transcripts CNN Headline News CNN International ... askCNN EDITIONS CNN.com Asia CNN.com Europe set your edition Languages Time, Inc. Time.com People Fortune EW Acid rain still a problem (CNN) Acid rain, which many thought had been resolved, persists as a serious environmental problem, according to a new report. And, it may take as long as 100 years before many forests, lakes and streams recover. VIDEO CNN's Brian Nelson reports on the environmental problem in the Northeastern U.S. Play video (QuickTime, Real or Windows Media) CNN's Brian Nelson has more. RELATED SITES: U.S. Environmental Protection Agency U.S. Environmental Protection Agency Clean Air Acts and Amendments U.S. Geological Survey Acid rain reports The Hubbard Brook Ecosystem Study Note: Pages will open in a new browser window External sites are not endorsed by CNN Interactive. TECHNOLOGY TOP STORIES: Report: SUVs pose danger to cars New telemarketer tool trumps TeleZapper Terra Lycos logs $2.2B loss AOL to offer song downloads ... More Search CNN.com

64. Acid Rain So the problem of acid rain is really one of acid deposition in dry weather acid rain has been held responsible for damaging buildings and statues made http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/AcidRain.html

Acid Rain Is rain more acid than normal. Natural rain and snow is slightly acidic ( pH 5.6) because of the carbon dioxide (CO ) dissolved in it. But over recent decades, rain in North America and Europe downwind of industrial areas has had a pH close to 4.5 and sometimes as low as 2.1 (equivalent to lemon juice). Sulfur dioxide The evidence is very strong that most of this acidity is caused by sulfur dioxide (SO ) released from the smokestacks of coal-burning power plants and other industrial sources. The sulfur dioxide is converted into sulfuric acid (H SO ). This may be carried to the ground in rain or snow, but often particles containing sulfuric acid settle out of dry air. So the problem of acid rain is really one of acid deposition in dry weather as well as wet. Nitrogen oxides Nitrogen oxides ("NO x "), which are converted into nitric acid, also contribute to acid deposition. Automobile exhaust accounts for 50% or more of the nitrogen oxides in polluted air. View Types of damage Acid rain has been held responsible for damaging buildings and statues made of limestone (true - view an example ), damaging aquatic life in lakes (true), causing a decline in the vigor of U.S. and European forests (may be partially responsible), and harming human health (doubtful).

65. UK Greenhouse Gas Emissions, Acid Rain Down CNN http://cnn.com/2001/TECH/science/12/11/environment.britain.reut/index.html

66. The Environmental Literacy Council - Acid Rain acid rain. Rain water is naturally acidic, because carbon dioxide in the atmospherecombines with water molecules to form carbonic acid. http://www.enviroliteracy.org/article.php/2.html

Home About ELC Site Map Contact Us ... Food Acid Rain Rain water is naturally acidic, because carbon dioxide in the atmosphere combines with water molecules to form carbonic acid. Acidic precipitation or acid deposition occurs when sulfur dioxide and nitrogen oxides in the atmosphere react with oxygen in the air to form sulfuric acid (H SO ) and nitric acid (HNO), which falls to the surface as rain, snow, or dust. To be considered acid precipitation, the precipitation has to have a pH of 5.0 or lower Sulfur dioxide (SO ) from human sources comes primarily from smelters and coal burning power plants. Hot sulfur dioxide also originates from natural sources, including volcanic emissions and sea spray. Nitrogen oxides come primarily from automobile exhaust and other combustion processes, and some is created by lightning and soil microbes. In past decades, to reduce air pollution in areas near power plants, utilities built tall smoke stacks to vent emissions high up into the air, away from local communities. As these smokestacks push emissions up into the atmosphere, the emissions react with the water particles in the air and are transported long distances by the wind. Because the prevailing winds in the U.S. are from West to East, eastern regions are more affected by acidic precipitation, even though the source of the emissions may be many miles away. However, nitrogen oxides from automobile exhaust contribute to acidic precipitation in all densely populated areas with heavy traffic. During the 1980s, the U.S. conducted a major ten-year scientific study of acidic precipitation. This study, the

67. Lesson Plan - Acid Rain: An Air Pollutant Lesson plan on the subject of acid rain. Objective. Students will learn howacid rain is an air pollution problem. http://www.tnrcc.state.tx.us/air/monops/lessons/acidrainlesson.html

See Also: Small Business and Environmental Assistance Education K-12 Air Lesson Plans Waste Lesson Plans ... TES 1999 Lesson Plans Acid Rain: An Air Pollutant Purpose: To demonstrate the effect of acid on statues and buildings Grade Level: 5th grade Essential Elements: Environmental Essential Elements Across the Curriculum - 75.25 (2) Acquire data through the senses. The student shall be given opportunities to (B) observe properties and patterns of objects, organisms and events in the environment. (4) Communicate data and information in appropriate oral and written form. The student shall be given opportunities to (B) describe objects, organisms and events from the environment, (D) describe changes that occur to objects and organisms in the environment. Objective: Students will learn how acid rain is an air pollution problem. Focus: Show a picture of a defaced statue. Materials: chalk, vinegar and glasses for each group Background: Acid rain is more acidic than normal rain and forms through a complex process of chemical reactions involving air pollution. The two most important pollutants that contribute to the formation of acid rain are oxides of nitrogen and sulfur dioxide, which react with moisture in the atmosphere to form nitric and sulfuric acid. The sulfur and nitrogen compounds that contribute to acid rain primarily come from manmade sources, such as industries and utilities. Emissions also come from automobiles and other forms of transportation and industrial processes, such as smelting. Acid rain can harm forests and crops, damage bodies of water, and contribute to the damage of statues and buildings. Researchers are considering the possible effects of acid rain on human heath. These acidic pollutants can be deposited through rain, snow, fog, dew, or sleet. Large quantities can also be deposited in a dry form through dust.

68. Environmental Issues Site devoted to the education of environmental issues including global warming, acid rain, and overpopulation. http://www.geocities.com/RainForest/Watershed/4345/

This page is devoted to the education of environmental issues. Please select the category below you wish to view. Any comments or suggestions to improve the quality of this website are appreciated! Email me here Webring Information This Security Of Nature Organization WebRing site owned by Denice Nelson Previous 5 Sites Previous Next ... List Sites This Earth's Children site is owned by Denice Nelson Click for the Previous Random Next Site SKIP Next ... Next 5 Click here for info on how to join Earths Children You are visitor number: Return to top of page © 2000 by Denice Nelson

69. Lesson Plan - Acid Rain: The Disappearing Statue Lesson plan on the subject of acid rain The Disappearing Statue. http://www.tnrcc.state.tx.us/air/monops/lessons/statuelesson.html

See Also: Small Business and Environmental Assistance Education K-12 Air Lesson Plans Waste Lesson Plans ... TES 1999 Lesson Plans Acid Rain: The Disappearing Statue Purpose To demonstrate the effect of acid on statues and buildings. Grade Level 2nd grade Essential Elements Environmental Essential Elements Across the Curriculum - 75.25 (2) Acquire data through the senses. The student shall be given opportunities to (B) observe properties and patterns of objects, organisms, and events in the environment. (4) Communicate data and information in appropriate oral and written form. The student shall be given opportunities to (B) describe objects, organisms, and events from the environment, (D) describe changes that occur to objects and organisms in the environment. Objective Students will learn how acid rain is an air pollution problem. Focus Show pictures of defaced statue and buildings. Materials sticks of chalk vinegar small plastic glasses for each group eyedroppers or straws three-penny nails Background Procedure Explain that acids react chemically with limestone.

70. EPA - Teachers - Water Curriculum Resources Materials for teachers from the EPA. Covers acid rain, hazardous waste, pollution, ground water, drinking water, and wetlands. Includes links to various activities for children from other EPA sites. http://www.epa.gov/teachers/curric-water.htm

Teaching Center Contact Us Print Version Search: EPA Home Teachers Curriculum About this site ... A to Z Index Water Curriculum Resources see also Water Background Information Center for Global Environmental Education Watershed Plan The Watershed Action Site offers one stop help in planning and organizing service-learning projects to prevent water pollution in your watershed. Within this site you can access everything from scientific background information or curricula to local experts or stencils for painting storm drain signs. cgee.hamline.edu/watershed/action/projects Exploring Estuaries What are estuaries? Why are they important? This site provides introductory information for students of various ages and background information for teachers. Includes links and a glossary. epa.gov/owow/estuaries/kids Educating Young People About Water Want to educate kids about water? These free materials from University of Wisconsin Stevens Point, Environmental Resources Center can provide you with the information you need to get started. www.uwex.edu/erc/eypaw/

71. LHS GEMS, Acid Rain acid rain. Grades 6–8. Written by Colin Hocking, Jacqueline Barber, acid rainOrder online Ordering information Literature Connections http://www.lhsgems.org/GEM312.html

Acid Rain Written by Colin Hocking, Jacqueline Barber, and Jan Coonrod This stimulating unit fosters scientific inquiry and critical thinking skills as it harnesses the curiosity, agility, and determination of student minds to study the troubling environmental issue of acid rain. Students learn about acids, bases, and the pH scale; make "fake lakes" and determine how their pH changes after an acid rainstorm; present a play on the effects of acid rain on aquatic life; determine the effect of various dilutions of acid on seed germination; and hold a town meeting to discuss possible solutions to the problem of acid rain. A "startling statements" game challenges students' preconceptions and prompts investigation. In addition to providing much information on acid rain, the unit encourages students to analyze complex environmental issues for themselves, and emphasizes community cooperation (making it an effective companion unit to the GEMS guide Time: Eight or more 45- to 60-minute sessions.

72. Air Pollution Information on air pollution, indoor air pollution, fly ash, acid rain and smog. http://edugreen.teri.res.in/explore/air/air.htm

73. Unit Plan 4 acid rain Lab acid rain is literally acid in rain water. The acid rainsolution should be a mixture of dilute sulfuric and nitric acids (about pH 4). http://www.mste.uiuc.edu/beusch/acidrain.html

Acid Rain Simulation Louie Beuschlein YES! I'd like to download the original onto Microsoft Word 6.0 or higher. Introduction : This is a two day unit plan that incorporates some decision-making ideas from statistics into the science classroom. It is intended for intermediate level science students (about high school freshman age) and beyond. No previous experience with statistical analysis is required. The NCTM Statistics Standard is taken into account in this lesson by having students make use of sampling to back up a claim and by having students design (with teacher assistance) a statistical experiment to study a problem. Acid Rain Lab : Acid rain is literally acid in rain water. It is a weak acid (sulfuric and nitric) but strong enough to damage buildings and statues and harm lakes, forests, and crops. The purpose of this lab is to investigate the damaging effects of acid rain on plants. In particular, students will determine whether and/or to what extent acid rain affects the germination rate of turnip seeds. The germination rates of seeds placed in an acid rain solution will be compared with that of the controlseeds placed in distilled water. Statistical methods will then be employed to determine whether any differences in germination rates is attributable to the acid rain or if it is reasonable to explain any differences as coincidences. The acid rain solution should be a mixture of dilute sulfuric and nitric acids (about pH 4). Students, working in groups of no more than four, should sandwich exactly 25 turnip seeds (or some other type of seed) between two layers of paper toweling saturated in acid rain solution. (There should be no pools of solution.) Each group should also prepare a control Petri dish in which distilled water is used in place of the acid rain solution. The Petri dishes should then be wrapped in aluminum foil to keep them in darkness and allowed to remain undisturbed (preferably for a weekend).

74. MSI - WATER CYCLE STUDENT ACTIVITY Shows how to create a biosphere in a bottle to discover how precipitation occurs and what acid rain does to the environment. http://www.msichicago.org/ed/env/envsample.html

Water Cycle Background: All of the earth's water goes through a cycle in which the water changes its location or physical state through different processes. In accordance with the law of conservation of matter, water is not created or destroyedQit just changes form. Water can be found in all three states of matter during the cycle: solid (ice caps), liquid (lakes) and gas (water vapor). There are five processes by which water moves through the cycle. Water in oceans and lakes evaporates into the air. Cool air in the atmosphere causes this water vapor to condense into a cloud. Precipitation from the cloud falls to the ground as rain, sleet or snow. The water on the ground percolates through the soil and some of it is absorbed by plants. As the plants go through photosynthesis (converting sunlight, water and carbon dioxide for their own food), they absorb water from the soil and release some of it back into the air through transpiration. These patterns of change can vary, but the cycle occurs continuously. Water has been cycling by means of these processes since time began. SET-UP Remove labels from your bottles by filling them with very warm water to warm the label glue.

75. Newton's Apple: Teacher's Guides acid rain is considered by many people to be one of the most serious environmental The term acid rain was coined by Angus Smith when he wrote about http://www.ktca.org/newtons/9/acidrain.html

@import "http://www.tpt.org/includes/station_tpt.css"; Peggy travels to the Wolf Ridge Environmental Learning Center to learn about acid rain. Teacher's Guides Index ACID RAIN What causes acid rain? How does acid rain damage the environment? Is acid rain harmful to people? How does the acid get in the rain? Is there any way to stop the damage it causes? DISCUSSION Acid rain is considered by many people to be one of the most serious environmental problems of our time. It is a global problem that is gradually affecting our world. The term acid rain was coined by Angus Smith when he wrote about industrial pollution in England. Some rain is naturally acidic because of the carbon dioxide (CO2) in air that dissolves with rain water and forms a weak acid. This kind of acid in rain is actually beneficial because it helps dissolves minerals in the soil that both plants and animals need.

76. Understanding Acid Rain Examine what acid rain is, how it s produced, and why it threatens our environment. http://weather.about.com/library/weekly/aa032502a.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Weather Homework Help ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Weather newsletter! See Online Courses Search Weather Understanding acid rain From pollutants to prevention More of this Feature Ten things you can do to help reduce acid rain Join the Discussion "What are the greatest challenges we face in order to reverse the effects of acid rain?" Ed Klappenbach, your guide to weather. Related Resources Air pollution Precipitation Elsewhere on the Web What is Canada doing about acid rain? What is Europe and the UN-ECE doing about acid rain? Acid rain is a complex environmental problem whose solution demands knowledge of meteorology, chemistry, and environmental policy. In this article, we'll first examine what acid rain is, how it's produced, and why it threatens our environment. We'll then explore the current policy and pollution reduction efforts underway to find out how experts are dealing with this challenging problem. What is acid rain?

77. CNN.com - Acid Rain Still Endangers Adirondacks - April 19, 2000 CNN http://www.cnn.com/2000/NATURE/04/19/acid.rain.adirondacks/index.html

nature CNN Sites CNN CNNfn CNNSI myCNN AllPolitics Languages myCNN Video Audio Headline News Brief ... Feedback CNN Sites CNN CNN Europe CNNfn CNNSI myCNN CNNfyi AllPolitics Languages Search CNN.com CNNSI.com CNNfn.com The Web NATURE TOP STORIES New hurdles hamper Galapagos oil spill cleanup Insight, Prius lead the hybrid-powered fleet Picture: Indonesia's Merapi volcano erupts MORE TOP STORIES Up to 2,000 killed in India quake; fear of aftershocks spreads Clinton aide denies reports of White House vandalism New hurdles hamper Galapagos oil-spill cleanup Two more Texas fugitives will contest extradition ... MORE MARKETS 4:30pm ET, 4/16 DJIA NAS SPORTS Jordan says farewell for the third time ... daily almanac MULTIMEDIA: video video archive audio multimedia showcase ... more services E-MAIL: Subscribe to one of our news e-mail lists Enter your address: DISCUSSION: message boards chat feedback CNN WEB SITES: AsiaNow Spanish Portuguese Italian ... Japanese FASTER ACCESS: europe TIME INC. SITES: Go To ... Time.com People Money Fortune EW CNN NETWORKS: more networks transcripts Turner distribution SITE INFO: help contents search ad info ... jobs WEB SERVICES: Acid rain still endangers Adirondacks Levels of some acid rain pollutants are on the rise in New York State, despite air-protection laws passed a decade ago

78. Weather Glossary - Acid Rain Find out more about the acid rain and how it influences our weather. http://weather.about.com/library/glossary/bldef-acidrain.htm

zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Weather Homework Help ... Help zau(256,140,140,'el','http://z.about.com/0/ip/417/C.htm','');w(xb+xb+' ');zau(256,140,140,'von','http://z.about.com/0/ip/496/7.htm','');w(xb+xb); FREE Newsletter Sign Up Now for the Weather newsletter! See Online Courses Search Weather acid rain Back to previous page Full weather glossary Definition: Acid rain is rain, snow, or fog that has been acidified by air pollutants such as sulphur dioxide or nigrogen oxide. Also known as: acid deposition Examples: These chemicalsproduced by the burning of fossil fuels, the smelting of ore, the burning of coal, and the processing of natural gascan be carried long distances by the wind before dissolving in precipitation and being deposited on the earth's surface. Related topics: Understanding acid rain Acid rain is a complex environmental problem whose solution demands knowledge of meteorology, chemistry, and environmental policy. In this article, we'll first examine what acid rain is, how it's produced, and why it threatens our environment. Ten things you can do to help reduce acid rain There are many little things you can do to help to reduce acid rain. If we all pitch in and do our part, we can vastly improve air quality, conserve water, and reduce the emission of fossil fuels. Here are ten things you can do to help.

79. EPA Closes Acid Rain Cloud Monitoring Sites CNN http://cnn.com/2000/NATURE/05/29/acidrain.ap/index.html

80. CNN.com - New York Passes Nation's Toughest Acid Rain Rules - Mar. 27, 2003 CNN http://cnn.com/2003/ALLPOLITICS/03/27/acid.rain.ap/index.html

The Web CNN.com Home Page World U.S. Weather ... Special Reports SERVICES Video E-mail Newsletters CNNtoGO SEARCH Web CNN.com New York passes nation's toughest acid rain rules Story Tools ALBANY, New York (AP) The state on Wednesday limited smokestack emissions in what environmentalists say will be the nation's toughest regulations on pollutants that cause acid rain. The state Environmental Board ordered reductions in sulfur dioxide and nitrogen oxide to curb acid rain, as well as help people with asthma and other respiratory ailments, said state Environmental Conservation Commissioner Erin Crotty. "They are the toughest acid rain regulations in the country," Crotty said. "Hopefully New York will become a model." Environmentalists say that in the Adirondacks alone, acid rain has created more than 500 "dead" lakes and ponds with little plant or animal life. But State Business Council spokesman Matthew Maguire said the regulations will not significantly reduce acid rain because most emissions in New York's air come from Midwestern plants. He said it will increase customers' energy bills while discouraging energy companies from doing business in New York. "This is a state that is already deeply troubled by energy issues. Upon this fire we are ladling gasoline," Maguire said.

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