Chemical substance

A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical.

Chemical substances exist as solids, liquids, gases or plasma, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another.

Drug

A drug is any substance other than food, that when inhaled, injected, smoked, consumed, absorbed via a patch on the skin or dissolved under the tongue causes a physiological change in the body.

In pharmacology, a pharmaceutical drug or medicine, is a chemical substance used to treat, cure, prevent, diagnose a disease or promote well-being. Traditionally drugs were obtained through extraction from medicinal plants, but more recently also by organic synthesis. Pharmaceutical drugs may be used for a limited duration, or on a regular basis for chronic disorders.

Pharmaceutical drugs are often classified into drug classes—groups of related drugs that have similar chemical structures, the same mechanism of action (binding to the same biological target), a related mode of action, and that are used to treat the same disease. The Anatomical Therapeutic Chemical Classification System (ATC), the most widely used drug classification system, assigns drugs a unique ATC code, which is an alphanumeric code that assigns it to specific drug classes within the ATC system. Another major classification system is the Biopharmaceutics Classification System. This classifies drugs according to their solubility and permeability or absorption properties.

Chemical (Crashdïet song)

Chemical is the second single from the Swedish glam metal band Crashdïet's 2010 album Generation Wild. It was released on 19 September and was written by Crashdïet's guitarist Martin Sweet and the band Peep Show's singer Johnny Gunn.

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Toy

A toy is an item that can be used for play. Toys are generally played with by children and pets. Playing with toys is an enjoyable means of training young children for life in society. Different materials are used to make toys enjoyable to all ages. Many items are designed to serve as toys, but goods produced for other purposes can also be used. For instance, a small child may pick up a household item and "fly" it through the air as to pretend that it is an airplane. Another consideration is interactive digital entertainment. Some toys are produced primarily as collector's items and are intended for display only.

The origin of toys is prehistoric; dolls representing infants, animals, and soldiers, as well as representations of tools used by adults are readily found at archaeological sites. The origin of the word "toy" is unknown, but it is believed that it was first used in the 14th century. Toys are mainly made for children.

Playing with toys is important when it comes to growing up and learning about the world around us. Younger children use toys to discover their identity, help their bodies grow strong, learn cause and effect, explore relationships, and practice skills they will need as adults. Adults use toys to form and strengthen social bonds, teach, remember and reinforce lessons from their youth, discover their identity, exercise their minds and bodies, explore relationships, practice skills, and decorate their living spaces.

Toy dog

Toy dog traditionally refers to a very small dog or a grouping of small and very small breeds of dog. A toy dog may be of any of various dog types. Types of dogs referred to as toy dogs may include Spaniels, Pinschers and Terriers that have been bred down in size. Not all toy dogs are lapdogs, although that is an important and ancient type of toy dog. The very smallest toy dogs are sometimes called teacup size, although no major dog registry recognizes that term.

Small dogs

Dogs referred to as toy or teacup dogs, are dogs found in the Toy Group of breed registries, may be of the very ancient lapdog type, or they may be small versions of hunting dogs or working dogs, bred down in size for a particular kind of work or to create a pet of convenient size. In the past, very small dogs not used for hunting were kept as symbols of affluence, as watchdogs, and for the health function of attracting fleas away from their owners.

Breeds

Most major dog clubs in the English-speaking world have a toy group, under one exact name or another, in which they place breeds of dog that the kennel club categorises as toy, based on size and tradition. The Kennel Club (UK), the Canadian Kennel Club, the American Kennel Club, the Australian National Kennel Council, and the New Zealand Kennel Club all have a group named "Toy", all though they may not all categorise the same breeds in this category. The United States has a second major kennel club, the United Kennel Club (UKC, originally formed for hunting and working breeds, though general today), and it does not recognize such a group; instead, small dogs are placed with larger dogs of their type, or into a UKC's "Companion Dog" group.As of September 2008, the American Kennel Club began debating whether or not to change the name of their "Toy" group to "Companion", in order to emphasise that dogs are not playthings, but the name change was resisted by traditionalists.

Toy (Toy album)

TOY is the 2012 eponymous debut album by London-based band TOY.

The album was recorded in early 2012, by music producer Dan Carey at his South London studio. Their album artwork is by artist Leif Podhajsky

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