TX Curriculum

TX 3rd Grade Science Curriculum

Give your child the support they need to keep up with Texas 3rd grade science. StudyPug covers every TEKS topic - from ecosystems and adaptations to landforms and the solar system.

3rd Grade Science

About 3rd Grade Texas science

Texas 3rd grade science follows the Texas TEKS, organized into life science, physical science, and Earth and space science strands. Students explore ecosystems, food chains, energy pyramids, adaptations, forces, simple machines, thermal energy, landforms, Earth materials, the solar system, climate, and human impact. StudyPug provides video lessons, practice problems, and step-by-step explanations aligned to every TEKS strand so students can get unstuck any time.

  • Strands: ecosystems, adaptations, food chains, forces, simple machines, thermal energy, landforms, Earth materials, and the solar system
  • Video lessons with step-by-step explanations for every 3rd grade TEKS topic
  • Practice problems and worked examples to reinforce each concept
  • Content aligned to the Texas TEKS for 3rd grade science

Curriculum topics by strand

Browse lessons and practice problems for every 3rd grade science strand, aligned to the Texas TEKS.

Topic includes:
Practice
Video
Quiz
ID
Strand & Expectation
StudyPug Topic

TX 3rd Grade Science Topics

  • Ecosystems and Adaptations: Students examine how living things interact within ecosystems, how organisms adapt to their environments, and how food chains and energy pyramids describe the flow of energy through a community.
  • Forces and Simple Machines: Students investigate pushes, pulls, and the six types of simple machines, building an understanding of how forces change the motion and direction of objects.
  • Thermal Energy: Students explore how thermal energy moves between objects and how temperature changes affect matter.
  • Landforms and Earth Materials: Students identify major landforms and classify Earth materials, including rocks, soil, and water, by their properties and uses.
  • Solar System and Climate: Students describe the objects in our solar system, the patterns of day and night, and how climate differs across regions, including the role of human impact on Earth.
  • Engineering Process and Traditional Practices: Students apply the engineering design process to solve problems and learn how traditional practices have contributed to scientific understanding.

How StudyPug Helps TX 3rd Grade Science Students

When a student gets stuck on a concept like food chains or simple machines, StudyPug lets them rewatch a focused video lesson, work through practice problems, and check their answers with step-by-step explanations - all without waiting for the next school day. Parents can assign specific topics and track progress from a separate parent dashboard. For a full overview of what students learn, visit our grade 3 science help resource page.

StudyPug is built to move at your child's pace. Students who need a quick refresher on a single topic can find it in minutes, while those who want to work ahead can explore challenge content beyond the standard curriculum. If you want to see what comes next, take a look at the tx grade 4 science curriculum to plan ahead.

Aligned to TX 3rd Grade Science Curriculum

Every lesson and practice problem on StudyPug for 3rd grade science is mapped to the Texas TEKS, the same standards Texas schools use to plan instruction and assess student learning. Topics are organized by strand so families can find content that matches exactly what is being taught in class, from ecosystems and Earth materials to forces and the engineering process.

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Written by the StudyPug Science Team

Last updated June 5, 2026

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