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Skills available for Pennsylvania third-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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3.3 Earth and Space Sciences

  • 3.3.A Earth Structure, Processes and Cycles

  • 3.3.B Origin and Evolution of the Universe

    • 3.3.B1 Composition and Structure

      • 3.3.3.B1.a Relate the rotation of the earth and day/night, to the apparent movement of the sun, moon, and stars across the sky.

      • 3.3.3.B1.b Describe the changes that occur in the observable shape of the moon over the course of a month.