Force & Motion
push or pull of an object
force
rocky/metallic objects that orbit the sun; mostly found in the "belt" between Mars & Jupiter
asteroid
to spin on an axis
rotation
has mass & volume
matter
central nervous system
force that slows down an object/objects
friction
frozen gases, ice, dust, & rock; orbits the sun; tail points away from the sun
comet
to move around the sun
revolution
the amount of matter in an object
mass
nerves that carry signals between the brain & muscles
peripheral nervous system
natural force that pulls toward the earth
gravity
huge glowing ball of gas (hydrogen & helium)
star
imaginary line that earth spins on
axis
the amount of space an object occupies
volume
a behavior a living thing is born with
instinct
inertia
half the earth
hemisphere
leaning on one side
tilt
how closely packed particles are
density
something a living thing learns over time
learned behavior
speed and direction
velocity
group of stars that form a pattern
constellation
different times of the year
seasons
resistance to sinking
buoyancy
physical adaptations that are changed by the environment
acquired traits