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    • Why Is Alaska So Cool?
    (. . . with all that daylight?)

    Required Hardware, Software and Materials

      Software

    • Excel Spreadsheet
    • CBL/CBR Program
      (already in the calculator)
    • CBL BULB Program
      (download file here)
    • CBL ANGLE Program
      (download file here)

      Hardware

    • Computer
    • TI-83 Plus Graphing Calculator
    • Calculator Based Laboratory (CBL)
    • CBL Light sensor
    • TI Graph Link (highly recommended)

      Materials

    • Log notebook
    • Regular style flashlight
    • 1 meter Wooden dowel or stick (outdoors) or pencil (indoor)
    • Hammer (outdoors) or tape (indoors)
    • Lamp with light bulb (60 to 100 watts)
    • Thread, string or fishing line
    • Wood block or other item to attach light sensor to
    • Ruler measured in centimeters
    • Tape measure
    • Graph paper
    • Sheet of paper
    • Protractor
    • Scotch tape
    • Masking tape
    • Clock or watch
    • Electrical or plastic tape
    • Sunshine (distinct shadow showing) from a level surface

    Last Updated 7/20/2001
    Developed by Alaska Team
    Copyright © 2001
    		NSF This project is supported, in part,
    by the National Science Foundation

    Opinions expressed are those of the authors and
    not necessarily those of the National Science Foundation.