Spelling List 15 Flashcards
geology
the study of earth and rocks
photography
the art of taking pictures
periscope
an apparatus consisting of a tube attached to a set of mirrors or prisms, by which an observer (typically in a submerged submarine or behind a high obstacle) can see things that are otherwise out of sight.
telephone
a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
thermos
a container that keeps a drink or other fluid hot or cold by means of a double wall enclosing a vacuum.
zoology
the scientific study of the behavior, structure, physiology, classification, and distribution of animals.
photoshythesis
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
stethoscope
a medical instrument for listening to the action of someone’s heart or breathing, typically having a small disk-shaped resonator that is placed against the chest, and two tubes connected to earpieces.
telegraph
a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
thermostat
a device that automatically regulates temperature, or that activates a device when the temperature reaches a certain point.
meteorology
the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
photocopy
a photographic copy of printed or written material produced by a process involving the action of light on a specially prepared surface.
telescope
an optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.
television
a system for transmitting visual images and sound that are reproduced on screens, chiefly used to broadcast programs for entertainment, information, and education.
thermal
relating to heat