Elementary Academic Words

Words for students from kindergarten to grade 8, each grade has 4 lists: art, math, science, and social. They are essential vocabulary for elementary academic classes.

Grade 2: Word List - Science

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