Each group needs:

• 1 holographic diffraction grating (1,000 lines per mm or 25,400 grooves per inch)
• 1 scientific calculator
• 1 protractor or angle ruler
• 1 ruler
• Graph paper
• Butcher-block paper
• Designing a Spectroscopy Mission Worksheet, one per team

To share with the entire class:

• 4-5 large sheets of black foam core board
• 1 red or green laser pointer
• 1 white light source (incandescent light bulb, not fluorescent)
• Copies of Astronomy Today or Sky and Telescope magazines
• Internet-accessible computers, for research

Have readily available, if needed:

• X-ACTO knives
• Scissors
• Masking tape
• Duct tape
• Black paint

Materials note:

• Student teams are asked to make a materials list. Encourage them to use already-available materials found around the home or school (to minimize items that must be purchased).
• Purchase holographic diffraction gratings in sheets or card-mounted slides. For example:
• Rainbow Symphony Store, http://www.rainbowsymphony.com/

A set of 10 12-inch x 6-inch linear sheets with 500 lines per mm costs $25

A set of 50 2-inch x 2-inch linear calibrated card mounted slides with 500 lines per mm costs $20

A set of 100 2-inch x 2-inch linear calibrated card mounted slides with 500 lines per mm costs $35