science education

Exploring Nature Science Education Resource:

Life Science, Earth Science, and Physical Science Resources for K-12

Dichotomous Key - Introduction Activity (Classification)

Classification Lecture and Beginner Activity
Classification of living things is a way to put them into groups that share the same traits. A dichotomous key helps us break down the traits of living things so we can catagorize them.
Use the dichotomous key to reach the names of each of the 12 animals AND the pathway you used to get there. This is about learning to use a key – not about knowing the names of these common animals (it is assumed you know their names). So use the blanks under the animal pictures to write the animal names AND the numbers in the key you follows to reach their names.


Classification Lecture and Beginner Activity
Classification Lecture and Beginner Activity
Classification Lecture and Beginner Activity

Citing Research References

When you research information you must cite the reference. Citing for websites is different from citing from books, magazines and periodicals. The style of citing shown here is from the MLA Style Citations (Modern Language Association).

When citing a WEBSITE the general format is as follows.
Author Last Name, First Name(s). "Title: Subtitle of Part of Web Page, if appropriate." Title: Subtitle: Section of Page if appropriate. Sponsoring/Publishing Agency, If Given. Additional significant descriptive information. Date of Electronic Publication or other Date, such as Last Updated. Day Month Year of access < URL >.

Here is an example of citing this page:

Amsel, Sheri. "Dichotomous Key - Introduction Activity (Classification)" Exploring Nature Educational Resource ©2005-2017. August 17, 2017
< > has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.

cheetah, tiger, panda, fox, bear, cougar