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Physical State. Matter can exist in three forms, or physical states: liquid, solid, or gas. Matter can change from one physical state to another by the processes of melting, freezing, evaporation, and condensation. Temperature changes can affect changes in state. Mass.
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Physical State • Matter can exist in three forms, or physical states: liquid, solid, or gas. • Matter can change from one physical state to another by the processes of melting, freezing, evaporation, and condensation. • Temperature changes can affect changes in state.
Mass • Mass is the amount of matter in an object. • Mass is measured with a balance. • Mass is not the same as weight. • Weight is a measurement of the pull of gravity on an object. • Weight is measured with a scale.
Magnetism • Matter that contains iron, nickel, cobalt, or steel will be attracted to a magnet. • Not all metals are attracted to a magnet.
Relative DensitySinking & Floating • Weight doesn’t determine if an object will sink or float. • The volume of an object and how much “stuff” (matter) is in the object will determine the density.
Conduction • Some materials allow thermal (heat) energy or electrical energy to flow through them easily. • These materials are called conductors.
Insulation • Some materials do not allow thermal (heat) energy or electrical energy to flow through them easily. • These materials are called insulators.
Solubility in Water • Solubility refers to the ability of a substance to dissolve when added to water. • A liquid, solid, or gas can be dissolved in water. Examples may include lemon juice in water, sugar in tea, and the carbonation in a soda.
Does it Matter? • Matter has properties that can be observed and measured. • These properties determinehow matter is: • Classified • Changed • Used