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Reflectivity of Light

Experiment #10 from Exploring Earth and Space Science

Education Level
Middle School


Light is reflected differently from various surfaces and colors. In this experiment, you will be measuring the percent reflectivity of various colors. You will measure reflection values from paper of the various colors using a Light Sensor and then compare these values to the reflection value of aluminum foil. You will then calculate percent reflectivity using the relationship


  • Use a Light Sensor to measure reflected light.
  • Calculate percent reflectivity of various colors.
  • Make conclusions using the results of the experiment.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

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This experiment is #10 of Exploring Earth and Space Science. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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