A
to soak something up, take something in
absorb
the flow of electric charge
electric current
a push or a pull that causes an object to start moving, stop moving, or change direction
force
the action or process of moving
motion
something that scientists change or measure when they conduct an investigation
variable
the thing that makes something happen
cause
the capacity to do work
energy
a force that pulls objects together
gravity
not moving, completely still
motionless
when two or more objects crash into each other
collision
something that keeps or holds energy
energy store
the process of making something hotter
heating
the action of pushing or moving an object forward
propulsion
a plan you make before making or building something
design
when enegy moves from one place or object to another
energy transfer
visible energy that enables us to see
light
energy transferred as vibrations that can be heard
sound
a change caused by something that happened
effect
information that supports a claim, idea, or theory
evidence
a piece of machiery that has a special function
mechanism
a test that you do several times to make sure the results are consistent, or the same, each time
trial