Teacher-specific resources:

• masking tape or file folder stickers/labels, to label samples
• sharpie, to label samples
• What’s In Our Stars? Introduction Presentation
• What’s In Our Stars? Teacher Procedures Presentation
• What’s In Our Stars? Sample Tracker
• What’s In Our Stars? Lab Handout Answer Key

Each student needs:

• What’s In Our Stars? Lab Handout
• colored pencils (can be shared), one for each color in ROYGBIV plus gray
• black pen or thin black marker

Each group needs:

• laptop computer
• What’s In Our Stars? Excel Dashboard
• What’s In Our Stars? Arduino Code
• spectrometer:
• 1 Spectroscopy Sensor, available online here
• 1 Qwiic to Breadboard Connection Cable, available online here
• 1 Arduino Uno Rev3, available online here
• 1 Arduino to USB 2.0 cable, available online here
• 1 piece of black construction or heavy cardstock cut to approximately 8 cm x 8 cm (~3” x 3”)
• 1 pair of scissors
• 1 set of samples:
• 3 different substances of known identity in sample cups/cuvettes
• 1 substance of unknown identity in sample cup/cuvette

For the entire class to share:

• teacher’s choice of 3 different substances to use as “test samples,” enough to give each group a complete set of samples. A complete set includes 1 of sample A, 1 of sample B, 1 of sample C, and 1 “unknown” that is the same substance found in either sample A, B, or C.
• See Before the Activity for further explanation, example group set, and suggested substances.
• To hold samples:
• 2 oz plastic containers with lids for solid samples (link) (each group will need 4), OR
• 3.5 mL cuvettes for liquid samples (link) in (each group will need 4)
• What’s In Our Stars? Student Procedures Presentation