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 3: Word List - Science

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absorb  Read Word
assimilate or incorporate; suck or drink up; occupy full attention
adaptations  Read Word
change in behavior of a person or group in response to new or modified surroundings
chlorophyll  Read Word
any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms
clay  Read Word
very fine-grained soil that is plastic when moist but hard when fired
compost  Read Word
a mixture of decaying vegetation and manure; used as a fertilizer
decay  Read Word
decompose; break sown; disintegration; rottenness; decline; worsen; decadence
germinate  Read Word
cause to sprout or grow; come into existence
gravity  Read Word
seriousness; solemn and dignified feeling; natural force between two massive bodies
humus  Read Word
partially decomposed organic matter; the organic component of soil
inorganic  Read Word
lacking the properties characteristic of living organisms; relating or belonging to the class of compounds not having a carbon basis
joints  Read Word
junction by which parts or objects are joined together
ligament  Read Word
any connection or unifying bond; a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs
locomotion  Read Word
self-propelled movement; power or ability to move
moon phases  Read Word
Lunar phase or phase of the moon refers to the shape of the illuminated portion of the Moon as seen by an observer, usually on Earth
muscle  Read Word
authority or power or force, especially when used in a coercive way; one of the contractile organs of the body
nutrients  Read Word
source of nourishment, especially a nourishing ingredient in a food
organic  Read Word
simple and healthful and close to nature
planets  Read Word
star other than a fixed star; star revolving in an orbit
pollinate  Read Word
fertilize by transferring pollen
protection  Read Word
the activity of protecting someone or something; a covering that is intend to protect from damage or injury
reflect  Read Word
throw or bend back light from a surface; give back or show an image of; mirror
reproduction  Read Word
act of making copies
revolution  Read Word
act of revolving; motion of body round a fixed point or line; rotation; total or radical change; fundamental change in political organization
rotation  Read Word
revolution; act of rotating as if on an axis
sand  Read Word
a loose material consisting of grains of rock or coral
shadow  Read Word
an unilluminated area
skeleton  Read Word
framework; internal supporting structure that gives an artifact its shape
solar system  Read Word
the sun with the celestial bodies that revolve around it in its gravitational field
stars  Read Word
the topology of a network whose components are connected to a hub
support  Read Word
the act of bearing the weight of or strengthening
survival  Read Word
existence; remaining alive
variable  Read Word
factor; something that is likely to vary; changeable; inconstant