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Natural Selection


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This Unit is on Natural Selection and Survival of the Fittest. Students will learn about adaptive radiation, trait advantage, speciation, and evidence for evolution. This resource includes a graphing activity on natural selection and reading passages on Darwin and The Theory of Natural Selection. This huge resource has everything you need to teach Natural Selection and Trait advantages.

This resource includes:

Lesson Plans

Reading Passages

Graphing activities

Strategic Notetaking Guide

CER Page

Follow-up Pages


Answer Keys

Teachers Love This Resource!

Kristen ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ Extremely Satisfied

Great unit on natural selection and evolution. The activity with the rock mice was fabulous and went perfectly with the standards. My students enjoyed learning about this topic. Great readings.

Jennifer ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ Extremely Satisfied

Aligns well with standards. Great labs and follow-up pages. Great slide show. Altogether a really great unit that is easy to implement.

Aligned with these standards:


Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.


Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals’ probability of surviving and reproducing in a specific environment.

Utah SEEd Standard 7.5.1

Construct an explanation that describes how the genetic variation of traits in a population can affect some individuals’ probability of surviving and reproducing in a specific environment. Over time, specific traits may increase or decrease in populations. Emphasize the use of proportional reasoning to support explanations of trends in changes to populations over time. Examples could include camouflage, a variation of body shape, speed and agility, or drought tolerance. (LS4.B, LS4.C)

Natural Selection

Natural Selection

You may also like this companion piece, Selective Breeding