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Do Now:

Do Now:. What is the mathematical formula for density? What are the units used to express density? Homework: Finish back side of variables worksheet. Physical Properties of Matter. Physical Property -.

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Do Now:

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  1. Do Now: • What is the mathematical formula for density? • What are the units used to express density? Homework: • Finish back side of variables worksheet

  2. Physical Properties of Matter Physical Property - A characteristic of matter that can be observed or measured without changing the identity of the matter Name some physical properties you can think of: magnetism conductivity luster transparency color

  3. Other physical properties Different physical properties include: ______________________  Ability to transfer heat from one area to another _______________  Whether the substance is a solid, liquid, or gas Malleability  _____________________________ Solubility  _______________________________ Thermal conductivity State (phase) can be pounded into thin sheets can dissolve in another substance

  4. M V Think about it: If you squeeze a substance under higher pressure, what would happen to its density? Density DENSITY  The amount of matter in a given space (How packed together the molecules are) D = (Equal to mass divided by volume) Density Formula: * For any substance, density will always be the same at a given: __________________________________________________________________ Pressure and temperature INCREASES

  5. Sink or swim? • What do we use density for? • Density < surroundings  • Density > surroundings  • Identify a substance • Determine whether something will sink or float Density of Y = 0.7g/mL FLOAT SINK Density of H2O = 1.0 g/mL What do you think? Is it easier to float in fresh water or salt water? Density of Z = 4.1g/mL

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