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Natural Selection Kit

Item # 171200 Exclusive This product is exclusive to Carolina Biological Supply. With Digital This kit includes 1-year access to digital resources including videos, digital teacher’s manuals, printable student guides, interactive lessons, editable assessment questions, and more.

Product Highlights

  • Explore natural selection and the way in which environmental change affects the genetic traits of a population.
  • Investigate several generations of moths to apply the Hardy-Weinberg principle and demonstrate the concept of genetic equilibrium.
  • High school laboratory investigation with enough materials for 10 lab groups.
  • Carolina Kits 3D®—Labs that use phenomena to support NGSS and 3-dimensional instruction.



In stock and available to ship.

The dramatic increase in the frequency of dark moths, and corresponding decrease in the frequency of light moths, in 19th-century England's peppered moth population define the investigative phenomenon. To answer the driving question, students read about the phenomenon in the pre-lab and make an initial claim about it. Students model 5 generations of moths, gathering evidence of genotype and allele frequencies as environmental variables change. They compare calculated Hardy-Weinberg frequencies for a population in genetic equilibrium with the observed frequencies of their model. After their statistical analysis, students revise their claim about the cause of the phenomenon.

Time Requirement
Total, 195 minutes. Teacher prep and pre-lab, 65 minutes. Investigation, 100 minutes. Assessment, 30 minutes.

Digital Resources
Includes 1-year access to digital resources that support 3-dimensional instruction for NGSS. Digital resources may include a teacher manual and student guide, pre-lab activities and setup videos, phenomenon videos, simulations, and post-lab analysis and assessments.

Performance Expectation(s)
HS-LS4-3 and HS-LS4-4

Crosscutting Concepts

Disciplinary Core Ideas
LS4.B: Natural Selection

Science and Engineering Practices
Analyzing and Interpreting Data

Learning Objectives

  • Model how natural selection affects a population's genetic equilibrium when an environmental change is introduced.
  • Apply concepts of statistics and probability to calculate and analyze allele, genotype, and phenotype frequencies in a population.
  • Use mathematical reasoning to evaluate whether a population is in the process of natural selection.
  • Make a claim, supported by evidence, about changes in the distribution of traits in the peppered moth population.

Prerequisite Knowledge and Skills
Students should understand basic Mendelian genetics. They should be familiar with the following terms: traits, genes, alleles, recessive, dominant, homozygous, heterozygous, genotype, and phenotype. They should also be able to solve polynomial equations and simultaneous algebraic equations.

  • This item is only available from Carolina Biological Supply Company.

Product Families Featuring This Item:

Components Qty Included?
Black Environment Sheets 20 Included
White Environment Sheets 20 Included
Cups 10 Included
Black Beads 1,000 Included
White Beads 1,000 Included
Moth Punchout Sheets 20 Included
Carolina Science Online® Resources (1-year subscription) 1 Included
Teacher's Manual with Reproducible Student Guide 1 Included
Small Plastic Bags 30 Needed, Not Included
Chalkboard or Dry-Erase Board Needed, Not Included
Calculators (optional) Needed, Not Included