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Skills available for Texas eighth-grade science standards

Standards are in black and IXL science skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.

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1-4 Scientific investigation and reasoning

5 Matter and energy

6 Force, motion, and energy

7-10 Earth and space

  • 7 The student knows the effects resulting from cyclical movements of the Sun, Earth, and Moon.

  • 8 The student knows characteristics of the universe.

    • A describe components of the universe, including stars, nebulae, and galaxies, and use models such as the Hertzsprung-Russell diagram for classification;

    • B recognize that the Sun is a medium-sized star located in a spiral arm of the Milky Way galaxy and that the Sun is many thousands of times closer to Earth than any other star;

    • C identify how different wavelengths of the electromagnetic spectrum such as visible light and radio waves are used to gain information about components in the universe; and

    • D research how scientific data are used as evidence to develop scientific theories to describe the origin of the universe.

  • 9 The student knows that natural events can impact Earth systems.

  • 10 The student knows that climatic interactions exist among Earth, ocean, and weather systems.

11 Organisms and environments