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Carolina EcoKits®: Succession in a Hay Infusion

Item # 187224 New Online Only Exclusive
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Grades 9–12. Students model how changing conditions can result in a new ecosystem and how, in some cases, these changes follow a general pattern called succession. Students develop model ecosystems using a hay infusion, protist cultures, and algae cultures. Then students collect evidence using the models to construct an explanation for the changes that occur in biotic and abiotic factors within their ecosystems.



In stock and available to ship.

Gather evidence, over time, to argue patterns in the relationships among populations within a hay infusion

PE: HS-LS2-6
Related PE: HS-LS2-1
Time Requirement: 2 45-minute Class Periods

SEP: Developing and Using Models
CCC: Stability and Change; Patterns
DCI: LS2.C: Ecosystem Dyanics, Functioning, and Resilience

Grades 9–12. Students explore the driving question of how biological communities in a model pond ecosystem change over time and how these changes follow a general pattern called succession. During the experiment, students set up a mini pond using a hay infusion, protist cultures, and algae cultures to model the pond ecosystem. Student groups make observations and take samples of assigned portions of the pond, collecting evidence about changes in the abiotic and biotic factors. They also create microscale pond models from test tubes—a control microscale pond, which mimics the features of the larger class pond, and a microscale pond with change to one or more parameters—to determine how it would impact the ecosystem. Student observations and data collection take place over the course of 4–6 weeks. Kit helps address Next Generation Science Standard* HS-LS2-6. Accommodates up to 8 groups of students. Includes FREE 1-year access to digital resources that support 3-dimensional instruction for NGSS.

Note: Kit includes a prepaid coupon to request 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.

*Next Generation Science Standards® is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of, and do not endorse, this product.

  • This item is only available from Carolina Biological Supply Company.
  • Excepted Quantity - This product is/contains a DOT regulated hazardous material in an excepted quantity. This does not incur a hazardous materials fee. Orders shipping to HI and AK are subject to review and may incur additional shipping charges.
  • This item is only available at Carolina.com.

This item includes a prepaid coupon for living or perishable materials (all items). Redeem the coupon for delivery of these materials at your convenience at www.carolina.com/livingform, by phone at 800.334.5551, or by fax at 800.222.7112.

Components Qty Included?
Protozoan Mixture 2 Included
Algae Mixture 2 Included
Alga-Gro® Freshwater Medium, Vial 2 Included
Soil, Bag 1 Included
Timothy Hay, Bag 1 Included
Cheesecloth, 5 yd 1 Included
Culture Tubes (20 x 150 mm) 20 Included
Pipets 400 Included
Plastic Depression Slides 16 Included
Plastic Tank, 1½ gal 1 Included
Protoslo® Quieting Solution, 15-mL Bottle 1 Included
pH Paper (pH 4.5–7.5), Roll 1 Included
Wheat Seed, 1 Tablespoon 1 Included
Rubber Stoppers, 1-Hole 20 Included
Carolina Science Online® Resources (1-year subscription) 1 Included
Teacher's Manual with Reproducible Student Guide 1 Included
Light Microscope (1 per student group) Needed, Not Included
Aluminum Foil (optional, see procedure) Needed, Not Included
Springwater (approximately 8 L) Needed, Not Included
Colored Pencils, Class Set (optional item for prelab) Needed, Not Included
Wax Pencil or Maker (1 per student group) Needed, Not Included
Marker Needed, Not Included
Labeling Tape (masking tape) Needed, Not Included
Graduated Cylinder (1 per student group) Needed, Not Included
Plastic Spoons or Scoopulas (1 per student group) Needed, Not Included
Ruler Needed, Not Included
Culture Tube or Test Tube Rack (1 per student group) Needed, Not Included
Waste Beaker or Cup (1 per student group) Needed, Not Included
Wash Bottle 1 Needed, Not Included
Paper Towels Needed, Not Included
Scissors Needed, Not Included
Electronic Scale or Balance Needed, Not Included
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