 | Project title | The effect of surface temperature on fingerprints  |
| Difficulty Level | Middle school | |
| Project page | Click here to view this science project | |
Description | ||
| This science fair project was done to investigate the effect of surface temperature on the quality of fingerprints obtained. The testing was done by extracting fingerprints from drinking glasses at various temperatures. | ||
Instructions preview | ||
| 1. For this science fair project, the independent variable is the temperature of the drinking glasses. The dependent variable is the clarity of the fingerprint made on the glass. This is determined by comparing powdered copies of fingerprints obtained on pieces of cellophane tape. The constants (control variables) are the drinking glasses, the finger used to create the fingerprints, the cocoa power as well as the softness of the brush used. 2. Label the 6 drinking glasses as 0°C, 10°C, 20°C, 30°C, 40°C and 50°C respectively with the black marker. Record the temperatures on a sheet of A4 paper, ..... | ||
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