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  1. A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust , and most of its interior, except for the liquid outer core and pockets of magma in the ...

  2. en.wikipedia.org › wiki › RockRock - Wikipedia

    Rock (magazine), a former Yugoslav music magazine. Rock, a novel by Hal Ellson. Rocks (film), a British coming-of-age drama film. Rocks (Das Rad), a German 2001 animated short. Rock Records, a Taiwanese record label founded in 1980. Uprock or rock, a form of street dance.

    • Rock Classification
    • Impact on Human Life
    • Related Pages

    Rocks are classified by their minerals and chemical make-up. The processes that formed them are also noted. Rocks may be igneous, sedimentary and metamorphic. Rock types may change in a so-called 'rock cycle'.

    Rocks have had an impact on human life. They have been used by humans for over two million years. The mining of rocks for their metals has been one of the most important things in human advancement. Rocks are mined for buildingmaterials of all kinds.

  3. Breccia – Rock composed of broken fragments cemented by a matrix. Calcarenite – Type of limestone that is composed predominantly of sand-size grains. Chalk – Soft, white, porous sedimentary rock made of calcium carbonate. Chert – Hard, fine-grained sedimentary rock composed of cryptocrystalline silica.

  4. From Simple English Wikipedia, the free encyclopedia. Rock music is a genre of popular music. It developed during and after the 1960s in the United States. It originally started in the 1940s and 1950s with the start of rock and roll. Rock and roll grew out of rhythm and blues and country music.

    • Overview
    • Making rock
    • Other forms of rock

    Rock is a type of hard stick-shaped boiled sugar confectionery most usually flavoured with peppermint or spearmint. It is commonly sold at tourist resorts in the United Kingdom and Ireland; in Gibraltar; in Denmark in towns such as Løkken and Ebeltoft; and in Sydney and Tasmania, Australia. It usually takes the form of a cylindrical stick, normally 1–2.5 cm in diameter and 20–25 cm long. Blackpool rock is usually at least 2.5 cm in diameter, and can be as thick as 17 cm across and up...

    Traditional seaside rock is made using granulated sugar and glucose syrup. The mix is approximately 3:1, i.e. three parts sugar to one part glucose syrup. This is mixed together in a pan with enough water to dissolve the sugar. This is then boiled to approximately 147 °C or "hard crack" before being poured onto water-cooled steel plates. Once poured, food colourings for the casing and lettering are added and mixed in by hand using a spoon or small palette knife. Once the toffee mixture is ...

    Rock is a different product from rock candy; it more closely resembles a harder candy cane.

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