Description
Students study the biogeochemical cycles at work in a miniature aquatic ecosystem. They set up a gallon aquarium, then—each week—measure water loss, temperature, and levels of pH, nitrite/nitrate, phosphate, and hydrogen sulfide. They also observe and record changes in biodiversity weekly. After 2 weeks, students design and implement an experiment to manipulate a parameter of the ecosystem and, in the following weeks, observe its effects on the system.
This kit is designed for 1 group of 4 students. Digital teacher’s manual, included FREE with kit purchase, is a 12-month eBook license to the Biogeochemical Cycles Teacher’s Manual and Student Guide. Note: Kit ships with perishable materials included for immediate use. Restricted states will be shipped compatible organisms and/or plants (Elodea canadensis, Elodea najas, or Chara, depending on availability). Canadian customers must apply for a Canadian Department of Agriculture permit.
AP® is a trademark registered and/or owned by the College Board®, which was not involved in the production of, and does not endorse, this product.
This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. For substitution suggestions, please call us at 800.334.5551 (8am to 8pm, ET, Monday-Friday).