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Classify natural selection

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Classify natural selection — free printable Middle School Science worksheet

Students in middle school classify the key mechanisms of natural selection — variation, inheritance, selection pressure, and differential survival — in this Life Science worksheet on Evolution and natural selection. Teachers can use it as a concept-sorting task after a lesson or reading to check that students can distinguish the components of the mechanism before applying it to specific cases. Clear understanding of natural selection is foundational for all subsequent evolution study.

Learning objectives

  • Classify the mechanisms of natural selection using key biological terms
  • Explain how variation and selection pressure lead to differential survival
  • Apply the concept of natural selection to explain changes in a population over time

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

Answer Key

Answer key for Classify natural selection — free printable Science worksheet

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