Identifying Matter by its Properties
10th Grade · Science · 40 min· Seed 5.2.2
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Learning Objective
Ask questions to plan and carry out investigations to identify substances based on patterns of their properties. Emphasize using properties to identify substances. Examples of properties could include color, hardness, conductivity, solubility, or a response to magnetic forces. Examples of substances could include powders, metals, minerals, or liquids. (PS1.A)
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Physical properties are properties that can be observed without changing the chemical composition of a substance, while chemical properties can only be observed when the chemical composition changes.
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Intensive properties, such as color and density, remain the same no matter how much of the substance is present, but extensive properties, like mass and volume, depend on the amount of the substance.
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Examples of chemical properties include a substance's reactivity with other chemicals, its flammability, and its ability to rust.
