Evidence of Chemical and Physical Change


Standard 1:  Students will understand the nature of changes in matter.

Objective 2: PDF - Observe and evaluate evidence of chemical and physical change


    1. Identify observable evidence of a physical change (e.g., change in shape, size, phase).
    2. Identify observable evidence of a chemical change (e.g., color change, heat or light given off, change in odor, gas given off).
    3. Observe and describe chemical reactions involving atmospheric oxygen (e.g., rust, fire, respiration, photosynthesis).
    4. Investigate the effects of chemical change on physical properties of substances (e.g., cooking a raw egg, iron rusting, polymerization of a resin).


    • Chemical Reactions – Model Lesson
    • Pumpkin Decomposition – Model Lesson
    • Physical and Chemical Reactions
      •  Set of experiments that show the difference between a physical reaction and a chemical reaction and the 4 ways in which a reaction can be sped up; (concentration, surface area, temperature, & catalysts).
    • Penny Lab
    • Salt Water Race
    • Chemical and Physical Changes
      • Students make observations of various phenomena to try and determine if a physical or chemical change has occurred. During this process, students also make conclusions about evidences of a chemical change occurring.
    • Book Lists
    • Jordan District Science Page


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