Dichotomous Key

Dichotomous Keys

Determining Relationships Between Organisms using Dichotomous keys

1. What is that critter, flowering plant, or tree you spotted? What kind of fish is that? No, don't reach for your smartphone yet. There is a time honoured and tested way to determine what you're looking at. How?

2. If you ask a series of YES/NO (a dichotomy) characteristics about an organism enough times, it will create a unique path which helps identify it based on characteristics. 

3. In this activity, you'll use Dichotomous Keys to differentiate several insects. Then, for fun, we unleash you on a journey to create your own key.
   
   

4. Your journey begins here --> Dichotomous Key Activity