
Classify evolutionary relationships
Free printable Grade 7 science worksheet for "Classify evolutionary relationships" — practice evolution and natural selection. No-prep, print or assign online.
Middle school students in grades 6–8 practice classifying evolutionary relationships between organisms, deepening their understanding of how evidence from anatomy, genetics, and fossils reveals shared ancestry. Teachers can use this worksheet to reinforce the concept of phylogeny and to prompt critical thinking about how scientists group living things. It fits a Life Science unit on evolution and natural selection where classification connects to deeper patterns of life.
Learning objectives
- Classify organisms based on shared evolutionary characteristics
- Interpret evidence used to determine evolutionary relationships
- Explain how classification reflects common ancestry
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Classify evolutionary relationships” worksheet free?
Yes. “Classify evolutionary relationships” is a free printable Science worksheet. Sign in with Google or email to download the PDF instantly.
What grade or age is this Science worksheet for?
It's designed for Middle School (ages 11–14), covering Evolution and natural selection.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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