adaptation the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light) |
calorie unit of heat; unit of heat equal to the amount of heat required to raise the temperature of 1 kilogram of water by 1 degree |
carbohydrate essential structural component of living cells and source of energy for animals |
carnivore any animal that feeds on flesh |
circuit electrical device that provides a path for electrical current to flow |
climate weather condition; atmosphere; environment |
composition a mixture of ingredients; the spatial property resulting from the arrangement of parts in relation to each other and to the whole |
conductor a device designed to transmit electricity, heat; person who collects fares on a public conveyance |
electricity energy made available by the flow of electric charge through a conductor; a physical phenomenon associated with stationary or moving electrons and protons |
energy exertion of force; capacity for work or vigorous activity; usable heat or power |
geology science which treats the structure and mineral constitution of the globe |
herbivore any animal that feeds chiefly on grass and other plants |
igneous produced under conditions involving intense heat |
insulator a material such as glass or porcelain with negligible electrical or thermal conductivity |
magnetism attraction for iron; associated with electric currents as well as magnets |
metamorphic characterized by metamorphosis or change in physical form or substance |
mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition; composed of matter other than plant or animal |
nutrient nourishing substance; source of nourishment, especially nourishing ingredient in a food |
omnivore a person who eats all kinds of foods; an animal that feeds on both animal and vegetable substances |
poles one of two divergent or mutually exclusive opinions; one of the two ends of a magnet where the magnetism seems to be concentrated |
predator animal that lives by preying on other animals; person who robs or exploits others |
prey target of a hunt; animal hunted or caught for food |
protein any of a large group of nitrogenous organic compounds that are essential constituents of living cells |
sedimentary resembling or formed by the accumulation of sediment; form of rock made by the deposition and compression of small particles |