When you're not busy shooting aliens and you just want to review your science course, try this easy-going quiz.

Just hover over a True or False statement with the probe and press and hold the left mouse button to analyze the statement.

What could be easier than that?


    The items below are Flash (SWF) files that need to be downloaded to your computer in order to run. Right click on the file name and choose "Save link as..." and choose a location on your computer. The file will be downloaded and saved to your computer. Depending on your browser and settings, you may also be able to just click the file name below and download it.
    Make sure you have a Flash Player installed on your computer. After downloading the Flash (SWF) file, double click on the file name and it should automatically play in the Flash Player.
Choose Your File: