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Vocabulary B
| Question | Answer |
|---|---|
| Balance scales | a measuring instrument for determining the weight or mass of an object. |
| Balanced force | A balanced force is a force that together equal zero and make no change on the objects motion |
| Barometer | An instrument for measuring atmospheric pressure. |
| Barrier | border, limit, obstacle, barricade |
| Barrier island | a long, relatively narrow island running parallel to the mainland, build up by the action of waves and currents. |
| Basalt | A hard, dense, dark volcanic rock composed chiefly of plagioclase, pyroxene, and olivine, and often having a glassy appearance. |
| Basin | a bowl-shaped vessel |
| Bass | the lowest part of the musical range or Any of several North American freshwater fishes of the family Centrarchidae, related to but larger than the sunfishes. |
| Bat | nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate. |
| Bathysphere | spherical deep diving apparatus (lowered by a cable) for underwater exploration. |
| Battery | an electrochemical cell that can be charged electrically to provide a static potential for power or released electrical charge when needed. |
| Beach | The shore of a body of water, especially when sandy or pebbly. The sand or pebbles on a shore. |
| Beak | the bill or nib of a bird, consisting of a horny sheath, covering the jaws. The horny, projecting structure forming the mandibles of a bird, especially one that is strong, sharp, and useful in striking and tearing. |
| Beaker | a flatbottomed jar made of glass or plastic … used for chemistry |
| Benign | not dangerous to health, not recurrent or progressive |
| Benthos | a region including the bottom of the sea and the littoral zones … the collection of organisms living on or in sea or lake bottoms |
| Bi | two |
| Big bang theory | the theory that the universe originated sometime between 10 billion and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature |
| Bile | A bitter, alkaline, brownish-yellow or greenish-yellow fluid that is secreted by the liver, stored in the gallbladder, and discharged into. |
| Bio | life |
| Biology | the study of life |
| Biome | a major biotic community characterized by the dominant forms of plant life and the prevailing climate |
| Biotic | of or relating to living organisms |
| Bird | warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings |
| Birth control | Voluntary limitation or control of the number of children conceived, especially by planned use of contraceptive techniques. |
| Black Hole | a region of space resulting from the collapse of a star |
| Bladder | a hollow organ lined with smooth muscle. |
| Blindness | Loss or absence of the ability to perceive visual images. The condition of a person having less than 1/10 (20/200) |
| Blizzard | a severe winter storm condition … a violent snowstorm with winds blowing at a minimum speed of 35 miles (56 kilometers) per hour and visibility of less than one-quarter. |
| Blood | the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets … blood carries oxygen and other materials needed by the cells. |
| Blood pressure | the pressure of the circulating blood against the walls of the blood vessels |
| Blossom | the flower or flowers of a plant |
| Bonding | the joining of two or more atoms through the sharing or exchange of electrons |
| Bone | the dense, semirigid, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates |
| Bone fracture | a soft tissue injury that is accompanied by a complete or incomplete break in bone |
| Boreal | Of or relating to the north … northern. Of or concerning the north wind. Of or relating to the forest areas of the North. |
| Botany | the science or study of plants |
| Bovine | Of, relating to, or resembling a ruminant mammal of the genus Bos, such as an ox, cow, or |
| buffalo | American bison, large shaggy-haired brown bison of North American plains |
| Bowels | A part or division of the intestine … the interior of something |
| Brain | the part of the central nervous system that includes all the higher nervous center, enclosed within the skull, continuous with the spinal cord. |
| Bronchial tubes | Passages of airway in the respiratory tract that conducts air into the lungs |
| Brow | the part of the face above the eyes |
| Bruin | a conventional name for a bear used in tales following usage in the old epic ‘Reynard the Fox’ |
| Buoyancy | The tendency or capacity to remain afloat in a liquid or rise in air or gas. The upward force that a fluid exerts on an object less |
| Burrow | A hole or tunnel dug in the ground by a small animal, such as a rabbit or mole, for habitation or refuge. |
| Butte | a hill that rises abruptly from the surrounding region |
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cwear
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