aging | the organic process of growing older and showing the effects of increasing age |
air pressure | the pressure exerted by the atmosphere |
condensation | compression; the process of changing from a gaseous to a liquid or solid state |
evaporation | process of extracting moisture |
frequency | the number of occurrences within a given time period |
insect | small air-breathing arthropod |
instrument | tool; one used by another to accomplish a purpose; device used to produce music; legal document |
life cycle | the series of changes in the life of an organism, including reproduction |
matter | something that has mass and occupies space |
metamorphosis | marked change in appearance, character, condition, or function; major transformation |
molecule | the smallest particle of substance, having all the properties of that substance |
pitch | action or manner of throwing something |
reproduce | have offspring or young; duplicate; make a copy |
sound | sensation perceived by the ear; distinctive noise |
vibrate | shake, quiver; move or swing from side to side regularly |
vocal cord | either of two pairs of folds of mucous membrane projecting into the larynx |
volume | capacity; amount of space occupied by an object |
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