a kind of that can be loud or soft
sound
to find the size or amount of something
measure
a simple machine with a slanted surface
ramp
anything that can change the direction and size of forces
simple machine
bounce off
reflect
the point where a lever turns
fulcrum
a pattern of stars
constellation
how warm or cold something is
temperature
a push or a pull
force
a simple machine used to change the force needed to lift things
lever
the different shapes of the Moon
moon phases
a tool that measures temperature
thermometer
a kind of energy which you cannot see anything without it
light
move back and forth quickly
vibrate
energy that can make things change
heat
a force caused by the rubbing of one
friction
how high or how low a sound is
pitch
a force that pulls between things and Earth
gravity