Grade 3ScienceTEKS 3.13A

Grade 3 Science TEKS 3.13A: Animal Structures and Survival

Free, teacher-ready lessons and worksheets for Animal Structures and Survival in Grade 3 Science, fully aligned to Texas TEKS 3.13A.

Explore and explain how external structures and functions of animals such as the neck of a giraffe or webbed feet on a duck enable them to survive in their environment

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      Grade 3 Science TEKS Lessons

      TEKS 3.13A: Animal Structures and Survival

      • Structures and Functions of Animals

        About this lesson

        Learning Target: I can identify a survival skill needed by an animal, and a structure and its function that they have because of it.

        Focuses On:

        • Structures on animals as a result of a survival need

        Builds On:

        2.13B:

        record and compare how the structures and behaviors of animals help them find and take in food, water, and air

        Next Level:

        5.13A:

        analyze the structures and functions of different species to identify how organisms survive in the same environment

        Read More:

        This lesson is designed to support students' understanding of structures that animals have developed for survival.


        The lesson begins by learning about structures that animals use to obtain food and water. It then goes on to discuss structures used for protection in various ways, such as defense against predators and insulation from the cold.


        This is the first time that students are introduced to the relationship between structures and functions as a form of survival, which will provide support for standard 5.13A.

        Grade 3ScienceTEKS 3.13A

      Grade 3 Science TEKS Worksheets

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      Frequently Asked Questions

      How do you teach Animal Structures and Survival to 3rd graders?

      To teach Animal Structures and Survival to 3rd grade Science students, anchor the concept in a hands-on investigation or real-world phenomenon, then build academic vocabulary and scientific reasoning through guided practice. TEKS 3.13A asks students to explore and explain how external structures and functions of animals such as the neck of a giraffe or webbed feet on a duck enable them to survive in their environment. Crystal Instruction's free ClearLessons for 3.13A walk through this progression with modeling, guided practice, and built-in checks for understanding, while the ClearSheets provide scaffolded practice. You can download both free on this page.

      What is 3.13A in 3rd grade Science?

      TEKS 3.13A is a 3rd grade Science standard for Animal Structures and Survival. It requires students to explore and explain how external structures and functions of animals such as the neck of a giraffe or webbed feet on a duck enable them to survive in their environment. It is part of the Texas Essential Knowledge and Skills (TEKS) for Grade 3 Science.

      Where can I find free TEKS 3.13A lessons and worksheets?

      You can download free TEKS 3.13A lessons and worksheets directly on this page — no login or account required. Crystal Instruction provides free PDF versions of our Animal Structures and Survival ClearLessons and ClearSheets for Grade 3 Science, and each one is also available as an interactive lesson inside the full Crystal Instruction platform.

      What skills are included in 3rd grade Animal Structures and Survival?

      TEKS 3.13A ( Animal Structures and Survival) covers the following 3rd grade Science skills: students learn to explore and explain how external structures and functions of animals such as the neck of a giraffe or webbed feet on a duck enable them to survive in their environment. Free resources for this standard include Structures and Functions of Animals.

      Are TEKS 3.13A resources aligned to STAAR?

      Although Grade 3 Science is not directly tested on the Texas STAAR test, TEKS 3.13A builds the foundational skills students need for later STAAR assessments. Every Crystal Instruction ClearSheet for 3.13A is STAAR-aligned, and our ClearLessons are built to STAAR rigor using released STAAR test items, so students practice Animal Structures and Survival at the depth STAAR expects.