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17 terms

5th Grade Science Fusion, Unit 7

Vocabulary words for unit 7 in the FL 5th grade Science Fusion book.
STUDY
PLAY
force
a push or a pull
gravity
the force that pulls objects toward earth
friction
resistance felt between objects in contact
balanced forces
forces equal in size, opposite in direction
unbalanced forces
forces not opposed by another
velocity
speed of motion
acceleration
process of speeding up, increasing velocity
inertia
tendency of a body in motion to remain in motion
dwarf planet
a spherical celestial body revolving about the sun, similar to a planet but not as large
asteroid
a large rock or minor planet found in outer space
comet
a tailed mass of ice and dust orbiting the sun
astronomy
the study of planets and other objects in space
star
the study of planets and other objects in space
universe
all of the space, matter, and energy that exists
galaxy
stars, gas and dust held together by gravity
solar system
a group of planets orbiting one star
planet
large object that revolves around the sun