Nature & Geography | The Canadian Encyclopedia

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  • Article

    Mercury

    Mercury (Hg) is a silvery white metal also known as quicksilver. Mercury is named for the Roman god of commerce, travel and thievery. It has been used for over 3000 years. Its chemical symbol, Hg, is derived from the Latin word hydrargyrum, which means "liquid silver.

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    Metallurgy

    Metallurgy is the art, science and technology of turning metals and alloys (i.e., materials consisting of two or more metals) into forms suitable for practical use.

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    Metamorphic Rock

    Metamorphic rock is one of the 3 major classes of rock comprising the Earth's crust, the others being SEDIMENTARY and IGNEOUS ROCKS. Metamorphic rock has been transformed, while in the solid state, by pressure, temperature and deformation.

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  • Article

    Mica

    Phlogopite can be found in metamorphosed LIMESTONES, dolomites, serpentines and IGNEOUS ROCKS. It is light to dark brown and has properties and uses similar to muscovite.

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    Midge

    Midges are small, slender-bodied flies with long antennae, belonging to various families. Three families are especially important: non-biting midges (Chironomidae), biting midges (Ceratopogonidae, also called no-see-ums), and gall midges (Cecidomyiidae). In Canada, there are more than 1,300 named species of midges from these groups, and scientists expect at least as many more live here. The larvae of most non-biting and biting midges are aquatic, while most larval gall midges live and feed inside of growths on plant tissues. Midges are found all across Canada and in a variety of habitats.

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    Midnight Sun

    Midnight Sun In the Arctic in the summer, the sun shines all night long. Robert W. SERVICE had this in mind when he used the phrase in his ballad "The Cremation of Sam McGee" (1907). The expression "land of the

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  • Article

    Miguasha Fossils

     In addition to fishes, a few INVERTEBRATES, such as small CRUSTACEANS, worms and eurypterids, which are giant cousins of land scorpions, lived at the bottom of the estuary.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Miguasha Fossils
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    Milkweed

    Milkweed is the common name for perennial, herbaceous plants of genus Asclepias, family Asclepiadaceae (from Greek physician Asclepius).

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    Millet

    Millets are various, usually annual, grass (family Poaceae) crops that are often grown as cereals (ie, the seeds are harvested as grain for human consumption).

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    Millipede

    Millipede (class Diplopoda), terrestrial, usually elongate arthropod with a small head and short antennae.

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    Mink

    The American mink (Mustela vison) is a small, amphibious weasel inhabiting wetlands throughout Canada, excluding the tundra, and abundant on the BC seashore.

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    Minnow

    Many people refer wrongly to any small fish as a minnow. Properly, minnows are small to large freshwater fish of class Actinopterygii, order Cypriniformes, family Cyprinidae.

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    Mint

    Mint belongs to the mint family (Lamiaceae, also called Labiatae), a large plant family that also includes several aromatic and ornamental plants like basil, rosemary, oregano, thyme, coleus and sage.

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  • Article

    Mistletoe

    Mistletoe family, Loranthaceae, includes about 30 genera and over 1000 species. It is predominantly tropical but has members in temperate regions.

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    Mite

    Mite is a common name for most members of the subclass Acari, a large, diverse group of tiny arachnids that also includes ticks.

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