Forensics Case 5 - The Ink Is Still Wet: Using colorimetry to identify an unknown ink
Math: Statistics: Data Analysis
Science: Forensics: Data Analysis
9-12
60 minutes
TI Connect™
TI Connect™ CE
TI Connect™ CE
TI-84 series
Sensor - Colorimeter
- This is Activity 5 from the EXPLORATIONS Book:
- Vernier EasyLink
- Colorimeter
- 6 cuvettes
- Colored wax pencil
- 5 dropper bottles, with 10 mL samples of 5 different diluted black inks
- 1 dropper bottle with 10 mL of diluted unknown black ink
- Deionized or distilled water
- Lint-free tissues
- Goggles
Forensics: Connecting Science Investigations with TI Data Collection Activities.
The following materials are required for this activity:
Lessons
Data Collection
Forensics Case 5 - The Ink Is Still Wet: Using colorimetry to identify an unknown ink
Activity Overview
In this activity, students identify the ink of a ransom note to match suspects. They identify an unknown ink by its light absorbance characteristics. The experiment set up used is to measure a solutions absorbance of different colors (wavelengths) of light.
Download Files
Math: Statistics: Data Analysis
Science: Forensics: Data Analysis
9-12
60 minutes
TI Connect™
TI Connect™ CE
TI Connect™ CE
TI-84 series
Sensor - Colorimeter
- This is Activity 5 from the EXPLORATIONS Book:
- Vernier EasyLink
- Colorimeter
- 6 cuvettes
- Colored wax pencil
- 5 dropper bottles, with 10 mL samples of 5 different diluted black inks
- 1 dropper bottle with 10 mL of diluted unknown black ink
- Deionized or distilled water
- Lint-free tissues
- Goggles
Forensics: Connecting Science Investigations with TI Data Collection Activities.
The following materials are required for this activity:
Lessons
Data Collection
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Vernier EasyData,Vernier EasyLink and Vernier EasyTemp are registered trademarks of Vernier Science Education.