Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: 2019 | St. Rosemary Institution © 2010-2020 | Creative Commons 4.0

Eldridge v. British Columbia (Attorney General) (SCC, 1987)

Summary of Facts: Hospital Insurance Act and the Medical and Health Care Services Act. Neither program provides funding for sign language interpretation for the deaf. All of the appellants were born deaf and use sign language as their preferred means of communication. The appellants claim that without the use of an interpreter, they are unable…

Jean Piegat: Biography & Theory of Cognitive Development

Developed a theory about childhood development that still greatly influences behavioural psychologist and educators today. Biography: -born in 1896-1980 in Neuchatel -attended the University of Neuchatel -received a PhD in Natural Science -Moved to Paris, France to teach at an all boy school -Here was what led him to his theory that young children’s cognitive…

Karl Marx: Theories, Research, Biography

Karl Marx was an economist, revolutionary and a sociologist, amongst other occupations. Moving around Germany, France and finally England, he developed his theories and ideas that would lead him to attempt a revolution to overthrow the capitalist system. Despite being close to starting one such revolution, it quickly dissipated when it lost support. He wrote…

Environmental Contaminants: Heavy Metals, Synthetic Organic Contaminants, Volatile Organic Compounds

What is an Environmental Contaminant? Environmental contaminants are substances that, when accidentally or deliberately introduced into the environment, may have the potential to harm people, wildlife and plants. Some of these contaminants may have been manufactured for industrial use and because they are very stable, they do not break down easily. If released to the…

Exposure and Uptake of Environmental Contaminants

Humans come into contact with harmful contaminants in many ways. We may: eat food that carries toxin residues touch contaminated soils absorb radiation or chemical vapors through our skin drink polluted water inhale gases and particulates as we breathe Determining how much exposure of a contaminant is safe is a multi step process that involves…

Energy Use, Types, Sources

Energy Types Energy sources are classified as either renewable or non-renewable A renewable energy resource is one that can be replaced after use by regrowth, reproduction or replacement within a reasonable time frame (usually one human lifespan). Examples include solar, wind, tidal, thermal and hydroelectric A non-renewable resource is one that cannot be replaced after…

Agricultural Practices: Farming, Pesticides, Terminology

What is agriculture? Agriculture is the production of food and goods through farming and forestry. The development of agricultural techniques is credited for creating food surpluses that enabled the development of more densely populated societies with distinct classes Agriculture uses many techniques, to expand the lands suitable for plant raising. For example: Digging water-channels and…

Perspectives in Environmental Science

The basics Environmental issues are particularly difficult to solve because often the solutions require sacrifice It is difficult to convince a population of people to trade in quality of life and convenience for the greater environmental good This is evident with North America’s obsession with big cars, SUVs and Trucks When considering an environmental issue…

Types of Waste

There are many different types of Waste Solid Waste Liquid Waste Gaseous Waste Animal by-products Biodegradable waste Biomedical waste Chemical waste Commercial waste Construction and demolition waste (C&D waste) Electronic waste (E-waste) Green waste Grey water Hazardous waste or Toxic Waste Human waste Industrial waste Radioactive waste Recyclable waste Sewage Slaughterhouse waste Wastewater Industrial Waste…