Texture shape and color are physical properties used

�Texture, shape, and color are physical properties used to identify objects. �Ex: quarter is bigger than nickel

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�Density: densities of substances do not change based on the amount of the substance. Ex: break it in half, if you have 100 g or 200 g, all same density!!

• Same substance = same density Ex: Wood has the same density despite its size. �Two different substances can have the same density.

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�Heating Properties: substances respond to heating in different ways. �Compare rates at which substances conduct heat. �Ex: Aluminum and Iron heat up quickly.

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�Solubility: measure of how much a substance dissolves in given volume of liquid. � Ex: sugar dissolves almost immediately. Dirt falls to bottom.

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�Electric Properties: some substances conduct electricity better then others. � Ex: Copper is a good conductor. � Plastic is not.

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�Magnetic Properties: some substances are attracted to magnets, others are not. �Ex: Iron, cobalt, and nickel are magnetic. �Copper, aluminum, and zinc are not magnetic.

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�You can use the properties of substances to separate them. �Ex: use a magnet to separate aluminum from steel. (THEY LOOK THE SAME, but one is magnetic!) � Water-treatment plants separate mixtures to make water safe!

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