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 identify patterns in chlorophyll concentration data to formulate their explanations of phytoplankton distribution. 

Students identify patterns and describe the relationship between chlorophyll concentration and incoming shortwave radiation. 

This graphic organizer may be used to help students analyze the processes and components of Earth System phenomena.

Students will identify and describe the relationship between watersheds and phytoplankton distribution. 

Working in teams, students learn how a STEM professional uses STEM practices to solve real-world problems, design a STEM Career Connection Badge that highlights their takeaways about that profession, and build a training station to teach their classmates during a STEM Career Conne