Worksheet

Natural Selection

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About:

This printable science worksheet gives 7th graders 14 fill-in-the-blank questions on natural selection and evolution concepts. Topics include adaptation, genetic variation, survival of the fittest, and common ancestry, with a word bank of seven key terms provided. Works well for vocabulary review after a unit on evolution and natural selection.

Subject:: Science
Topic:: Biology
Grade Level:: 7th Grade
Updated March 2026

Word Bank

common ancestry
survival of the fittest
adaptation
Natural Selection
Genetic Variation
Evolution
overproduction

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