These worksheets look at scientific taxonomy and the classification of organisms.

Carolus Linnaeus (a Swedish Scientist) recognized early that we needed to clearly be able to communicate to each the exact organism we were discussing. Not all dogs are the same, just like elephants. Linnaeus created a set of rules for naming system for organisms from bacteria to the blue whale. Linnaeus chose to use Latin words to define names in the scientific system. He found that each organism could be clearly defined in a naming system consisting of seven levels. The naming system starts as general as naming a Kingdom of each organism which defines if the organism is an animal, plant, protest, fungi, bacteria, or prokaryote.

We have several sheets that help students begin to understand how organisms are grouped and sorted.

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Print Classification Worksheets

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Taxonomy and Classification

Number the seven major taxonomic groups in order from the one containing the largest number of types of organisms to the one that containing only one.

Classification of Animals and Microbes

Fifteen different organisms are shown below. For each, provide the common name and the name of the phylum to which it belongs.

Classification of Protists

Match the description or definition in the left column with the correct word in the right column. Note that not all words in the right column are used.

Protists Classification

Circle the letter of the correct answer.