Mississippi Science FB.5

ScienceGrades 9–12Foundations of Biology

Standard Cluster

Students will demonstrate an understanding of Earth’s fossil record and its indication of the diversity of life over time. Investigate through research the contributions of scientists to the theory of evolution and evolutionary processes (e.g., Needham, Spallanzani, Redi, Pasteur, Lyell, Lamarck, Malthus, Wallace, Darwin). Analyze and interpret data to support claims that different types of fossils provide evidence of the diversity of life that has existed on Earth and of the relationships between past and existing life on Earth. Obtain and communicate information to explain how DNA evidence and fossil records support Darwin’s theory of evolution. Investigate how biological adaptations and genetic variations of traits in a population enhance the probability of survival in an environment (natural selection). Enrichment: Create and analyze models that illustrate the relatedness between all living things (cladograms/phylogenic trees).

2026 Mississippi College- and Career-Readiness Standards for Science · Biological Evolution

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What This Cluster Means

What Students Need to Do

Students use fossils to track how life on Earth changed over time. They compare fossil and DNA evidence for shared ancestry. They also research scientists' ideas and examine how inherited traits affect survival.

What Mastery Looks Like

Students can use fossil ages and features to support a claim about past life and its relationship to living species. They can explain how DNA similarities support common ancestry and how a helpful inherited trait can become more common over generations.

Common Misconceptions

Students may think deeper fossils are younger or that a footprint fossil contains the animal's body. Some think an animal changes its genes because it needs to survive. Similar DNA does not mean one living species evolved from another living species.

How to Assess It

Exit ticket: A shell fossil lies below a fish fossil in undisturbed rock. Two living fish share 18 of 20 DNA bases; a fish and a snail share 8. Which fossil is older, and which living pair is more closely related? Explain both answers.

Lesson moves

Ways to Teach It

  1. Give groups dated shell, fish bone, and footprint fossil cards to place on a paper timeline; have them mark changes in diversity.

  2. Give pairs short source cards on Lyell, Wallace, and Darwin; ask how each person's ideas helped explain evolution.

  3. Scatter light and dark paper moths on dark paper; remove visible moths, double the survivors each round, and graph color counts.

  4. Use a museum photo of a fossil whale hind limb and a whale-hippo DNA comparison to write a whale exhibit caption.

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Printable FB.5 Worksheet

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