Websites
This PBS Nova site has a nice interactive tool to virtually convert water, carbon dioxide, or hydrogen into their different states of matter. Because you never know when you'll want to turn a pencil into a diamond.
Those guys and gals at NASA sure know what they're doing. On this website all things states of matter are explained. You're welcome.
Still worried about breaking some all mighty gas laws? Don't fret. The Chem Professor has you covered.
Haven't you ever wondered what goes on in an animated gas lab? It's not as stinky as you think. Once again, the peeps at NASA have done a great job breaking down some really tricky concepts.
Here is another great simulation website. These simulations really help everyone understand how and why things in the world of chemistry work.
This website has a nice review of all the colligative properties complete with helpful animations. Chemistry is always better when there are cartoons.
Videos
As the name suggests, this video provides a clear and simple introduction to the different states of matter.
Here is another introductory video covering the phases of matter. Clear, concise, and full of color—just the way we like it.
Yet another awesome review, except this time the whole lesson is set to catchy music.
This video is a lengthy lesson on the condensed phases of matter. It's totally worth the time. There are lots of visual demonstrations to go along with some of the more difficult concepts. This guy knows his stuff.
Join Marty the Marshmallow Man on his quest help everyone master all gas law concepts. No relation to the Stay Puffed Marshmallow Man.
Need another review on all the crazy gas laws? This video provides a more serious review that can help everyone ace that next test.
This is a nice comprehensive review about the colligative properties of solution. Part two can be found here.