|Environmental Science||Environmental Education 4I1.00||Science In Society||Attitudes 4.1 ab|
Sponsored by the National Science Foundation
GRADE : Fourth
CONTENT STANDARD: Environmental Science
CONTENT TOPIC: Environmental Education
CONCEPT: Chemicals may be harmful to the environment.
CONTENT OBJECTIVE: 4I1.00 To understand how some chemicals may affect the environment
INSTRUCTIONAL OBJECTIVES: The learner will:
TN COMPONENT OF SCIENCE: Science In Society
BENCHMARK: Science provides a basis for addressing issues that affect our lives.
4.1b Science and technology should be viewed thoughtfully, in neither a categorically antagonistic or an uncritically positive manner.
BENCHMARK: Science does not create nor can it solve all of our problems.
Several years ago, there was a chemical pesticide called DDT. It was very effective for the farmer, but researchers found that when the DDT got into the water and the food chain, it was deadly. When the use of this chemical was banned, environmentalists saw an increase in certain species of animals that had almost been wiped out because of this dangerous agricultural chemical. Factories also introduce dangerous chemicals into our environment. Often, when factories produce a product, there is a lot of WASTE. This means there are things not used in the final product, but necessary to make the product. This waste cannot be used again. Many years ago our water supplies were seriously contaminated because these waste products were dumped into the water. There were also certain kinds of waste that were emitted into the air from exhaust pipes on cars, trucks, planes, buses and from factories. When these waste products are found to be harmful to humans and other animals, they are called toxic waste.
In the 1960's a government agency was formed to monitor these dangers to our society. It is called the Environmental Protection Agency. Since the forming of this agency, strict rules and regulations have been enforced. Our water and our air are safer because people have become aware of the dangers our environment faced. There is, however, much more effort needed and stricter enforcement also.
2. Research the Environmental Protection Agency.
3. Go to a local plant or factory and learn how they dispose of waste.
4. Research the effects of DDT on plants and animals.
5. Project WILD Resources.
This is the time this file has been accessed since 07/01/97.
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