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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 nitrite/nitrate, phosphate, and hydrogen sulfide.
Students study the biogeochemical cycles at work in a miniature aquatic ecosystem. They set up an gal aquarium, then--each week-- measure water loss, temperature, and levels of pH, nitrite/nitrate, phosphate, and hydrogen sulfide. They 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 a class of 32 students working in 8 groups of 4. Includes prepaid coupon to request perishables at a later date. Item #181062 Kit Refill (with coupon) or #181062P Kit Refill (with perishables) replenishes consumed materials.
Note: Contact us or return the coupon to request delivery of perishable material. Restricted states will be shipped Elodea canadensis. Canadian orders require a permit from the Canadian government.
|Mixed Crustaceans Cultures||2||Included|
|Mixed Algae Cultures||2||Included|
|Miniature Aquariums with Lids||8||Included|
|Gravel, 5 lbs||1||Included|
|Nitrite/Nitrate Test Strips (with color charts)||1||Included|
|Phosphate Test Strips (with color charts)||1||Included|
|Hydrogen Sulfide Test Strips (with color charts)||1||Included|
|pH Test Strips (with color chart)||32||Included|
|Calcium Sulfate, 5 g||1||Included|
|Sodium Phosphate, 5 g||1||Included|
|Sodium Nitrate Solution, 30 mL||1||Included|
|Teacher's Manual with Reproducible Student Guide||1||Included|
|Graduated Cylinders, 100 mL||8||Needed, Not included|
|Springwater, 7 gal||1||Needed, Not included|
|Permanent Markers||8||Needed, Not included|
|Plastic Bags||8||Needed, Not included|
|Thermometers||8||Needed, Not included|
|Kimwipes® or Blank Paper (optional)||Needed, Not included|
|Colored Plastic Wrap (optional)||Needed, Not included|
|Black Paint (optional)||Needed, Not included|
|Tape (optional)||Needed, Not included|
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