Natural Selection Unit Test | Life Science | Grades 6–8

This Unit Test gives grades 6–8 Middle School Life Science students a 25-question summative check on Natural Selection.

Sample items: "Which statement best defines the biological process of natural selection?" and "What does the concept of 'overproduction of offspring' mean in Darwin's explanation of natural selection?"

What's inside: 25 four-option multiple-choice questions, an answer key, and teacher notes.

Resource type: Unit Test (.docx). Format: editable Microsoft Word assessment with approximately 2,700 words (~10 pages).

Classroom use: end-of-unit assessment or review in a Middle School Life Science course. Grades 6–8.

Format note: These files are delivered in Microsoft Office formats (Word and/or PowerPoint). If you open a worksheet that includes tables in Apple Pages or another non-Microsoft app, table formatting may not display correctly. For best results, use Microsoft Word or PowerPoint (or upload the file to Google Docs). If you run into any formatting issues, contact us and we can send a PDF version.