c. large ships. d. land. 4. Which statement is false about the April, 2010 explosion of the Deepwater Horizon drilling rig? a. It caused the largest oil spill to date. b.
URL: http://www.ck12.org/flx/render/embeddedobject/116516 ... Fertilizers that run off of lawns and farm fields are extremely harmful to the environment.
CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide. Using an open-source, collaborative, and web-based compilation model, CK-12 pioneers and promote
Every year dead zones appear in lakes and nearshore waters. A dead zone is an area of hundreds of kilometers of ocean without fish or plant life (Figure 1.4). FIGURE 1.4. The Gulf of Mexico dead zone is created by the Mississippi River, which carries
countries every year. Sources of Water Pollution. Water pollution contributes to water shortages by making some water sources unavailable for use. In underdeveloped ... water contamination in developing countries is raw sewage. ... Oil and other petr
Explain how fertilizer in runoff leads to algal blooms and dead zones. â¢ Give examples of point-source pollution, and define thermal pollution. â¢ Describe how the ocean is being polluted with trash and why ocean water is becoming more acidic. Les
come from a wide spread area such as run-off from roads, lawns, farms and cities. ... URL below. URL: http://www.ck12.org/flx/render/embeddedobject/60939. 2 ...
Apr 27, 2015 - b. too many algae. c. dead zones. d. two of the above. 4. Bacteria are most likely to contaminate water if it is polluted by a(n) a. oil refinery. b. chemical plant. c. nuclear power plant. d. sewage treatment plant. 5. Nuclear power p
CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide.
Using an open-source, collaborative, and ... Sources of water pollution ... At any given time, half of the world's hospital beds are occupied by patients suffering ...
Answer Key. Vocabulary: bacterial pollution, nutrient pollution, sediment pollution, toxic pollution, water pollution. Prior Knowledge Questions (Do these BEFORE ... Activity A: Types of water pollution. Get the Gizmo ready: â¢ Check that the TYPE t
In a marine ecosystem, algae are the producers. ... Ocean acidification occurs when excess carbon dioxide in the atmosphere causes the oceans to become ...
It includes the water that goes down your shower drain and that is flushed down your toilet. Instead of dumping wastewater directly into rivers, wastewater can be ...
reduce the cost of textbook materials for the K-12 market both ... Distinguish point source pollution from nonpoint source pollution. ... This excess of nutrients allows the algae to grow beyond control, bring harm to the rest of the ecosystem.
Water Pollution. Dana Desonie, Ph.D. Say Thanks to the Authors. Click http://www.ck12.org/saythanks. (No sign in required) ...
Can you gauge the health of a river by just looking at it? Why or why ... What can happen to a person who goes swimming in a bacteria-rich stream? Review. 1.
We need to reduce how much pollution ends up in the water ... The water is passed through filters that remove smaller particles from the water. This is called ...
Use water wisely. By conserving water, the amount of wastewater needing treatment and disposal will be reduced. Overwatering and runoff can carry pollutants into the storm drain system. Use and dispose hazardous substances properly. Always read the p
reduce the cost of textbook materials for the K-12 market both ... This excess of nutrients allows the algae to grow beyond control, bring harm to the rest of the ...
Responsibility for regulating pollution in NSW rests primarily with the State government, through the Environment Protection Authority (EPA) and the Office of. Environment and Heritage (OEH). Local councils also have some responsibility for regulatin
such as chemicals dumped through a drainage pipe or a specific landfill. Non-point sources are pollutants that may not be traceable to any one particular source, but a collection of pollutants that collectively cause contamination. These sources are
conference room and an employee shower/locker room ... area and a computer server room. ... Connect with us: Facebook | Twitter | YouTube | Google Plus.
It is part of the federal government's effort to keep our streams and oceans clean and eliminate pollution discharge. ... approximately 2,200 storm drain outfalls or openings at the end of a storm drain system that allows water to flow into a channel
Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required)
To access a customizable version of this book, as well as other interactive content, visit www.ck12.org
Definition of water pollution Nonpoint-source pollution, runoff, algal blooms, and dead zones Point-source pollution and thermal pollution Ocean pollution and ocean acidification
Lesson Objectives • • • •
Define water pollution. Explain how fertilizer in runoff leads to algal blooms and dead zones. Give examples of point-source pollution, and define thermal pollution. Describe how the ocean is being polluted with trash and why ocean water is becoming more acidic.
Lesson Vocabulary • algal bloom: excessive growth of algae in a body of water because of pollution with fertilizer in runoff • dead zone: area in a body of water where there is too little oxygen to support living things • nonpoint-source pollution: pollution that enters the environment from many different places, such as fertilizer in runoff that flows from land into a body of water • ocean acidification: increasing acidity of ocean water because it is dissolving more carbon dioxide from the atmosphere • point-source pollution: pollution that enters the environment from a single place, such as waste water from a factory discharged into a body of water through a pipe • thermal pollution: reduction in the quality of water because of an increase in water temperature • waterborne disease: disease caused by drinking water that contains pathogens • water pollution: addition of chemicals, sewage, trash, or heat to water resources • wetland: habitat such as a swamp, marsh, or bog where the ground is soggy or covered with water much of the year 1
Teaching Strategies Introducing the Lesson
Introduce water, its relative scarcity, and how it is being threatened by pollution and overuse by showing students the brief National Geographic video “Why Care About Water?” at this URL: http://video.nationalgeographic.com/ video/env-freshwater-whycare Building Science Skills
The lesson plan available at the URL below allows students to measure and study the effects of water quality on aquatic organisms. Specific objectives of the lesson plan include demonstrating a scientific method of measuring turbidity, relating turbidity to the ability of aquatic organisms to get energy from sunlight, understanding cause-andeffect relationships between human activities on land and water quality, and brainstorming ways to protect the health of water resources. http://nationalzoo.si.edu/Education/ClassroomScience/Turbidity/Teacher/default.cfm Cooperative Learning
With the hands-on class activities at the following URL, students will work cooperatively to answer the following questions: Who is responsible for pollution of water resources and the subsequent clean up? What are the most effective ways to clean up polluted water? The activities are interdisciplinary in nature and involve the use of critical thinking and analysis to solve problems. http://www.accessexcellence.org/AE/AEC/AEF/1996/hood_water.php Differentiated Instruction
Use a think-pair-share activity to help students understand lesson content. After students read the lesson, have them think about the causes and effects of water pollution. Then pair less proficient readers with other students, and have partners share their ideas about the causes and effects. Enrichment
Challenge students to delve deeper into the problem of water pollution with the STEM module “Will There Be Enough Fresh Water?” at the following URL. Students will use modeling and simulation to explore the distribution and uses of fresh water on Earth, the sustainability of freshwater resources, and ways people can maintain and replenish freshwater supplies into the future. http://concord.org/stem-resources/will-there-be-enough-fresh-water Science Inquiry
Students can study the effects of fertilizer on aquatic ecosystems with the inquiry activity at the URL below. In the activity, they will test the effects of liquid fertilizer on an aquatic environment containing small aquatic animals and plants. http://www.sciencebuddies.org/science-fair-projects/project_ideas/EnvSci_p017.shtml Real-World Connection
Students can investigate ocean acidification using real-world data with the activities at this URL: http://dataintheclas sroom.noaa.gov/SitePages/oa/index#.VGtfb_10z3h 2
Chapter 1. Water Pollution
Reinforce and Review Lesson Worksheets
Copy and distribute the Lesson 25.2 worksheets in CK-12 MS Life Science Workbook. Ask students to complete the worksheets alone or in pairs to reinforce lesson content. Lesson Review Questions
Have students answer the Review Questions at the end of Lesson 25.2 in CK-12 MS Life Science Flexbook. Answers are provided below. 1. 2. 3. 4.
What is a dead zone? How does it develop? What are wetlands? How do they reduce water pollution? Define thermal pollution, and state when it occurs. After a month of heavy rain, a formerly clear pond on a golf course is covered with slimy green algae. What do you think happened? 5. Compare and contrast point-source and nonpoint-source water pollution. Which type of pollution do you think would be easier to control? 6. Explain the process of ocean acidification. Why does it threaten the survival of many aquatic organisms? Lesson Quiz
Check students’ mastery of the lesson with Lesson 25.2 Quiz in CK-12 MS Life Science Assessments.
Points to Consider Water is one of our most important natural resources. • What is a natural resource? Besides water, what are some other examples of natural resources? • What is the difference between renewable and nonrenewable natural resources?