What Is It? Dichotomous Keys


Learn to use and create dichotomous keys.

How do scientists identify organisms?

  • Use a dichotomous key to identify a collection of plastic frogs.
  • Design and test your own dichotomous key to identify a collection of plastic lizards.
Assembled kits
Materials to assemble 10 kits - includes all supplies, printed labels, and student instructions copy master

Kit Includes

  • Student instructions
  • Collection of 6 plastic frogs
  • Collection of 6 plastic lizards
  • Metric ruler
  • Dichotomous Key for Plastic Frogs
  • Classification Graphic Organizer

Also Required

(no additional materials required)

Quantity Discounts


  • 1 – 9 kits: $14.95 each
  • 10 – 24 kits: $14.20 each
  • 25+ kits: $13.46 each


  • 1 – 9 packs: $102.95 each
  • 10+ packs: $97.80 each


  • This kit does not require refills since all its contents are reusable.

Correlation to Next Generation Science Standards (NGSS) Shop by NGSS »

Performance Expectations:


  • Science & Engineering Practices

    Developing and Using Models - Develop and/or use a model to represent amounts, relationships, relative scales (bigger, smaller), and/or patterns in the natural and designed world(s)

  • Disciplinary Core Ideas

    LS3.B: Variation of Traits - Individuals of the same kind of plant or animal are recognizable as similar but can also vary in many ways.

  • Crosscutting Concepts

    Patterns - Students identify similarities and differences in order to sort and classify natural objects and designed products. They identify patterns related to time, including simple rates of change and cycles, and to use these patterns to make predictions.