Be sure Squeak is installed successfully on your computer. It may take about 30 seconds for the project to load for a fast connection (up to 10 minutes for a slow modem connection). Wait until you see an orange flap at the lower left labeled Navigation. Click the flap to open and close it and access some neat tools. If you click Escape Browser, you will have more space. Click Browser Reentry to get back your Browser controls.
Laser: A laser is a very valuable tool that can be used to probe nature. Norbert and Zot have samples of clouds and aerosols they will use to calibrate their measuring system. Once you finish taking and recording the data on the test cells, you will have to use the data to determine the thickness of unknown clouds. You will learn about proportion, ratios, factors, taking measurements and plotting data. You can even try algebra, exponentials, and logarithms if you are up to it.
Plotting Tool: There are several challenges in this project. You may want to review plotting data before you do Challenges 1, 2 and 4. If you are already in the laser activity, click Browser Reentry and then click the browser back button to return to this page. Click the PLOTTING button at the left to review plotting.
Challenge 5: First watch the recording of how to use Squeak to make the objects on the page perform for you. Playing is a great way to learn. You must click Escape Browser and your resolution must be set at 1024x768 to view the recording properly. Click the PLAYING button at the left to start the recording. Then return to LASER and challenge yourself to add a fifth cloud or aerosol test cell. See details in the additional challenges link below or in the Squeak project. Submit your Squeak projects for Challenge 5 to the NASA CONNECT web site. We will post all the good entries that we receive to acknowledge your good work and let others learn from your solution.

After you are familiar with the Squeak Laser project, try these additional challenges. Explore, create, and have fun learning.