Science Teachers:

If you’re looking for a simulation activity to demonstrate a concept check this site out:

 http://phet.colorado.edu/en/simulations/category/new

 These are just their new simulations. You can use the menu on the left to organize by grade level, subject area, or to see a menu of all of the sims. These can be downloaded or run online. I like the “Build an Atom” one. Brought back memories of gumdrops and toothpicks. You could project one of these using your laptop (would work great with a SMARTboard), or post a link to your eBoard for student exploration.