
Identify natural selection
Free printable Grade 7 science worksheet for "Identify natural selection" — practice evolution and natural selection. No-prep, print or assign online.
Middle school students examine natural selection in this challenging Life Science worksheet, building understanding of how heritable variation and environmental pressure drive changes in populations over generations. Teachers can use it as a conceptual deepener within the Evolution and Natural Selection topic, pushing students to connect evidence and mechanism in grades 6-8. It develops the scientific reasoning skills needed to explain evolutionary change.
Learning objectives
- Identify the key components of natural selection: variation, inheritance, and differential survival
- Explain how natural selection leads to changes in a population over time
- Apply the concept of natural selection to a specific organism-environment scenario
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 “Identify natural selection” worksheet free?
Yes. “Identify natural selection” 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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