Grade Level: Middle School
NGSS: MS-LS4-2. Apply scientific ideas to construct an explanation for the anatomical similarities and differences among modern organisms and between modern and fossil organisms to infer evolutionary relationships.
Texas TEKS: 7.11A: Examine organisms or their structures such as insects or leaves and use dichotomous keys for identification.
Teach your middle school biology students all about dichotomous keys with this easy, interactive lab idea. Using common classroom materials, this lab instructs students to identify items that are not like the others and then follow a special key to determine their secret names. This activity is great for classes of all different sizes and will be sure to have your students involved in the fun.
Learn more by downloading the activity plan above.
Ward's Constructing a Dichotomous Key Lab Activity
Introduce your students to the dichotomous key. Students will create their own key by using observation and clear descriptors in order to accurately categorize and identify seeds.
Science Take-Out® What Is It? Dichotomous Keys
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. This complete "dry lab" activity contains all required materials.
Classification of Matter Kit
This dichotomous key set helps students to learn about the logical method of using a dichotomous key to classify matter by properties. Topics covered include energy mixtures, pure substances, colloids, suspensions, solutions, elements and compounds.