Students collect and analyze temperature data to explore what governs how much energy is reflected. 

In this activity, you will use an inexpensive spectrophotometer* to test how light at different visible wavelengths (blue, green, red) is transmitted, or absorbed, through four different colored water samples.

Students will analyze a graph showing the amounts of peak energy received at local noon each day over the year changes with different latitudes. 

The electromagnetic spectrum is comprised of all frequencies of electromagnetic radiation that propagate energy and travel through space in the form of waves.