Act or power of noticing something by using one or more of your senses.
Educated guess; suggested outcome that is tested during an experiment.
Last step in an experiment that explains the experiment and its results.
Variable in an experiment that must remain the same so it does not affect the results.
Particles move faster and farther apart
Particles slow down into fixed positions and are solid
Particles cool, come closer together, and are liquid
Energy is added to the particles
Color and texture