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Color Spectrophotometer
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Science Experiments
FREE K-12 STEM Project Ideas
In this science fair project, build a simple device to measure the concentration of blue dye #1 in various sports drinks, and perform a chemical kinetics experiment.
Cool Stuff
The colorimeter is one of the most interesting pieces of scientific equipment, and it can be found in almost any lab from the college level upwards. In the standard configuration, there is a beam of light shot through a prism. After which, the light coming from the prism hits a water-based sample while a detector on the far end records how much light has passed through. What can be discovered by completing assays of the sample is how the transmittance & absorbance of light correlate to concentration. Turbidity is also measured, which is essentially a measurement of the degree of