This activity has been designed to help students understand a variety of concepts related to water use, efficiency, and students' own impacts on their watershed. It is intended for use both in the classroom and at home. The first concept covered in this exercise is, "What is a watershed?" Ideally this concept will be conveyed in the context of the…

Tips that laboratory researchers and beginning graduate students can use to safeguard against explosion hazard with emphasis on clear illustrations of molecular structure are discussed. Those working with hazardous materials must proceed cautiously and may want to consider alternative and synthetic routes.

This English/Spanish informational kit contains resource materials that school administrators and parents can use to take full advantage of the Healthy Schools Act of 2000 and help them eliminate hazardous pesticide use around their schools. The kit looks at how to organize community interest in least-toxic Integrated Pest Management policy, and…

Although some communities welcome environmental cleanup, others reject official advice about the hazards of living in a high-lead environment. Discusses a predictive model developed by the Environmental Protection Agency and its ability to provide new guidance. Examines mechanisms for human exposure to lead, in particular, the risk to children.…

Examined is the development of resistance and secondary pest outbreaks and disease vectors. Two examples are considered in depth. A list of 42 references is included. (CW)

Discusses health risks and environmental repercussions associated with household disinfectants and cleaners. Provides alternatives that meet the "Green Cross" certification for biodegradability and safety. A chart lists hazardous ingredients in common household cleaning products. (MCO)

At an Ohio school that serves 150 multiply handicapped children, maintenance staff spread some old insecticide around a storage shed in a misguided attempt to kill rodents. Cleanup efforts cost over $15,000. Advises schools to examine their policies regarding pesticides. Lists information sources and the availability of a booklet on pest control.…

Planning and prevention is the best defense against fires in school. This is particularly true in the science laboratory due to the presence of flammable gases, liquids, combustibles, and other potential sources of fire. Teachers can prevent fires from starting by maintaining prudent lab practices when dealing with combustible and flammable…

A simple procedure to quickly screen different consumer products for the presence of lead, cadmium, and other metals is described. This screening technique avoids expending a lot of preparation time on samples known to contain low levels of hazardous metals where only samples testing positive for the desired elements need to be analyzed…

The disposal of hazardous chemicals and chemical containing products is of much concern and there is a need for a document that describes the hazards of a chemical, to consider the precautionary measures to be taken. Many classic demonstrations however cannot be performed due to safety concerns since sometimes chemicals are deemed too hazardous or…

A successful microscale fusion of semicarbazones, or transformation of carbonyl compounds into semicarbazones is performed through an effective grinding system. The donning of protective attire is advised to avoid the hazardous effects of semicarbazide hydrochloride during the fusion process.

The hazards of silver used in the laboratories are described for the benefit of the students and the teachers. The exposure limits and symptoms due to acute exposures are also mentioned.

The hazards caused by calcium used in the laboratories are described. The exposure limits and symptoms of acute exposures are mentioned.

Military munitions are the silent giant of hazardous waste management and cleanup in the United States. Toward the end of the first Clinton administration, the Navy and Air Force prevailed upon the Army--the armed service with the biggest ordnance problem--to consider co-sponsoring a formal dialogue on military munitions facilitated by the…

The United States Government is concerned about asbestos-containing products in the home because sometimes asbestos fibers can be released from these produces. If asbestos fibers are inhaled, certain types of cancer may later develop. Asbestos in homes poses several problems. Household members have little or no protection from exposure to asbestos…