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    Physical Property: measurable characteristics that describe the physical state of something including mass, magnetism, temperature, density, shape, volume, and conductivity.

    Chemical Change: a change that alters the identity of a substance resulting in a new substance or substances with different properties. 

    Chemical Property: A property or characteristic of a substance that is observed or measured during a reaction in which the chemical composition or identity of the substance changed.

    Physical Change: make different without changing what material is made of, such as cutting, folding, or melting.

    Physical State: the classification of matter as a solid, liquid, or a gas

    Properties: A single part of the way something is

    States of Matter: The distinct forms that different phases of matter take on

    Production of Heat and Light: Evidence of release of energy during a chemical change.

    Production of Gas: Sign that a new substance is being formed from a chemical change; Usually seen as bubbles.

    Substance: Something made of all one material such as water or copper

    Color change: Visible changes in substance's color; is evidence of a new substance being formed from a chemical change

    Temperature Change: Increase or decrease of heat energy in a substance; may be evidence of a new substance being formed during a chemical change. 

    Matter: anything that has mass and takes up space.