Texas Essential Knowledge and Skills Teaching Resources

Science 3.5

Matter and energy. The student knows that matter has measurable physical properties and those properties determine how matter is classified, changed, and used. The student is expected to:

  • (1) measure, test, and record physical properties of matter, including temperature, mass, magnetism, and the ability to sink or float;
    • (A) describe and classify samples of matter as solids, liquids, and gases and demonstrate that solids have a definite shape and that liquids and gases take the shape of their container;
    • (B) predict, observe, and record changes in the state of matter caused by heating or cooling such as ice becoming liquid water, condensation forming on the outside of a glass of ice water, or liquid water being heated to the point of becoming water vapor; and
    • (C) explore and recognize that a mixture is created when two materials are combined such as gravel and sand or metal and plastic paper clips.

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