Browse "Nature & Geography"

Displaying 761-780 of 895 results
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Squid

Squid are decapods ("10-footed") molluscs of class Cephalopoda. Squid are usually of the order Teuthoidea).

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Squirrel

 Squirrel, common name for family (Sciuridae) of rodents, comprising 262 species, found in North and South America, Eurasia and Africa.

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Star

A star is a large, self-luminous sphere of hot gas held together by its own gravitational force.

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Starfish

Starfish, or sea star, is a common marine animal found from seashore to ocean depths; 1600 species are known worldwide.

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Starling

Starling is the common name for an Old World family (Sturnidae) of birds, comprising 114 principally tropical species.

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Station PAPA

Station PAPA Ocean Weather Station "P" is commonly called Station PAPA after the code word for the letter P in the phonetic alphabet used by radio operators. Station PAPA is located in the N Pacific Ocean (50° N, 145° W) and has a water depth of 4200 m.

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Stickleback

Stickleback, of the fish family Gasterosteidae, occur in freshwater lakes and streams and in marine waters along northern coastlines of the northern hemisphere.

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Stonefly

Stonefly is the common name for small to medium-sized, usually brown, aquatic insects of order Plecoptera.

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Sturgeon

The sturgeon is a large, primitive, bony fish of class Actinopterygii, family Acipenseridae. The 4 genera and 24 species live in fresh and coastal waters of the Northern Hemisphere.

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Sucker

Sucker, freshwater fishes of the family Catostomidae, and closely related to minnows.

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Sulphur

In Canada, elemental sulphur is recovered from the processing of sour natural gas with a high hydrogen sulphide (H2S) content, and from the refining of high sulphur-bearing crude and heavy oil.

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Sumac

Sumac is a shrub of the genus Rhus of the family Anacardiaceae.

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Sun (Celestial Object)

Beginnings Geological and astronomical evidence suggests that the reactions were triggered 5 billion years ago when the temperature and density at the centre of a condensing cloud of primordial interstellar gas rose to levels where hydrogen atoms fused into helium atoms.

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Sunflower

Sunflower (genus Helianthus), common name for annual or perennial herbaceous plants native to the Western Hemisphere and belonging to the family Compositae.

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Sunken Ships/Shipwrecks

SABLE ISLAND, a crescent-shaped sandbar 300 km east-southeast (160 nautical miles) of Halifax, is also infamous for its shipwrecks, and is known as "the Graveyard of the Atlantic," as its shifting sands have been the site of over 350 such incidents.