Matter Changing States  OK, smarty, so you’ve already learned
about the three basic states of matter. Well, do you know the
boiling point of water in degrees Celsius AND Fahrenheit? Or
what “heat of fusion” means? If not, then the BrainPOP movie on
matter changing states is for you! Tim and Moby will tell you
all about the energy that state changes require, and the effect
that extra energy has on atoms and molecules. You’ll learn about
sublimation, which occurs when a solid melts directly into a
gas, and also about condensation, when gas turns into liquid. A
watched pot never boils--so get away from the stove and watch
this movie while you wait!  Learn More:  What is a phase change?
How is the melting point of one object the freezing point of
another?  What is the difference between solids, liquids, and
gases?