Carolina EcoKits®: Carrying Capacity and Algal Blooms
- Carolina EcoKits®: Carrying Capacity and Algal Blooms Item #187014
- Carolina EcoKits®: Carrying Capacity and Algal Blooms with Carolina® Spectroscopy Chambers Item #187015
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Grades 9–12. Students investigate an algal bloom scenario and, in the process, explore factors that affect the carrying capacity of ecosystems. In the first investigation, students explore how spectroscopy can be used to evaluate concentration with sample solutions. In the second investigation, students conduct an experiment to study population growth in algae. Kit accommodates 10 groups of students.
Analyze patterns in sample populations to determine conditions that influence algal growth rate, and then relate these factors to the ecological phenomenon of algal blooms, carrying capacity, and eutrophication.
Related PE: HS-LS2-7
Time Requirement: 4 45-minute Class Periods
SEP: Using Mathematics and Computational Thinking
CCC: Systems and System Models
DCI: LS2.A: Interdependent Relationships in Ecosystems
Grades 9–12. Students investigate an algal bloom scenario and, in the process, explore factors that affect the carrying capacity of ecosystems. In the kit's first investigation, students explore how spectroscopy can be used to evaluate concentration with sample solutions. Students are tasked with using a Carolina® Spectroscopy Chamber (item #653355), a smartphone, and a color analyzer app to place the culture tubes in order from lowest to highest concentration. In doing this, students discover the patterns that exist between the data presented by the color analyzer app and the concentration of green food dye in the solution.
In the second investigation, students carefully conduct an experiment to study population growth in algae. They grow algae in culture tubes containing solutions with different concentrations of nutrients. Using the skills and information learned in the first investigation, students are able to monitor the change in algal concentrations in the different solutions. Students graph and analyze their data to estimate the carrying capacity for algae in their tubes. This information will be extrapolated to make sense of the present algal bloom phenomenon.
Students can conduct investigation 1 in 50 minutes. They can set up investigation 2 during a single 50-minute class period but then must take measurements (each requiring approximately 5 to 10 minutes) 3 times a week for 3 weeks.
Kit accommodates 10 groups of students and includes FREE 1-year access to digital resources that support 3-dimensional instruction for NGSS. Note: Order the kit with or without Carolina® Spectroscopy Chambers (item #653355). Kit includes a prepaid coupon to request the perishable materials later at your convenience. Contact us or return the coupon at least 2 weeks prior to requested delivery date to ensure prompt arrival of materials.