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Classify states of matter

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Classify states of matter — free printable Grade 3 Science worksheet

Third graders categorize materials as solids, liquids, or gases in this Physical Science worksheet on matter and materials, reinforcing understanding of the three states of matter through classification tasks. Teachers can use it after hands-on exploration of physical states or as a consolidation activity during a matter unit. It supports Grade 3 science literacy by developing the vocabulary and reasoning needed to describe and sort everyday materials by their physical state.

Learning objectives

  • Classify given materials as solid, liquid, or gas based on their observable properties
  • Describe the defining characteristics that distinguish each state of matter
  • Explain how the same substance can exist in different states under different conditions

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Grade 3; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

Good for

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