Mississippi Science ZOO.8.3

ScienceGrades 9–12Zoology I and II

The Standard

ZOO.8: Students will understand the structure and function of phylum Chordata, classes Amphibia and Reptilia, and how they demonstrate the characteristics of living things.

Describe adaptations that have led to reptiles living on land successfully.

2026 Mississippi College- and Career-Readiness Standards for Science · Phylum Chordata, Classes Amphibia, and Reptilia

Teacher's field guide

What Students Need to Do: Explain how reptiles survive and reproduce on land. Link scales, lungs, amniotic eggs, and water-saving waste removal to the problems of drying out, breathing air, and protecting embryos.
What Mastery Looks Like: A student can explain how scales slow water loss and how an amniotic egg protects an embryo on land while still letting gases pass through. They can also explain how lungs and uric acid help reptiles live away from water.
Common Misconceptions: Students may think scales stop all water loss or that a reptile egg is airtight. Some assume every reptile lays eggs.
How to Assess It: Exit ticket: A lizard lays eggs in dry soil. Name two adaptations that help the adult or its embryos survive there, and explain what each does.

Lesson moves

Weigh two damp sponges, wrap one in wax paper, then unwrap and reweigh both tomorrow to model how scales reduce water loss.
Show photos of frog eggs in a pond and a turtle nest; ask which embryos can develop in dry soil and why.
Sort cards labeled scales, moist skin, lungs, amniotic egg, and uric acid by whether they help life on land, then defend each choice.
Show a desert lizard photo and a fact card on uric acid; ask students to label two ways the lizard conserves water.

Free download

A ready-to-print activity worksheet aligned to ZOO.8.3, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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