Launchball (http://www.sciencemuseum.org.uk/launchpad/launchball/) offers a wonderful challenge to get the ball to the goal using the tools offered to overcome the obstacles. Not for science only! This is life situations to use some basic solutions to reach a goal. Collaboration is possible. WARNING this site may be addictive ;). Try it, you'll like it. Do you have other sites with great games? Please let us know.
This game may be used to track your ability to solve the puzzle, perhaps with a chart, or spreadsheet. Groups of students may want to work on these together and then create one of their own! If they do let the Science Museum know what you have developed, share your creativity.