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Density

Density. IPC A Packet 5. Physical Properties. A. Definition: Properties that DO NOT change the CHEMICAL NATURE of matter B. WILL NOT alter the substance C. Examples 1.COLOR 2. SMELL 3. FREEZING POINT 4. BOILING POINT 5. DENSITY. Chemical Properties.

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Density

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  1. Density IPC A Packet 5

  2. Physical Properties A. Definition: Properties that DO NOT change the CHEMICAL NATURE of matter B. WILL NOT alter the substance C. Examples 1.COLOR 2. SMELL 3. FREEZING POINT 4. BOILING POINT 5. DENSITY

  3. Chemical Properties A. Definition: Properties that DO change the CHEMICAL NATURE of matter B. WILL alter the substance C. Examples FLAMMABILITY REACTIVITY WITH WATER

  4. Density A. Definition: a property that describes the relationship between MASS and VOLUME (how tightly PACKED the molecules are) B. Formula to find density: D = M/V a. D: DENSITY b. M: MASS c. V: VOLUME

  5. Density Each cube represents 1 mL of volume. The Most Dense: Midrange Density: The Least Dense:

  6. Reading a Density Graph A B C Order of liquids in the graduated cylinder: C B A

  7. Density of Pigments • The lower the colors are more dense than the colors that moved higher up the paper.

  8. The Density Column • Less Dense FLOATS • More Dense SINKS. • The clear liquid is the most dense. Blue is the least dense.

  9. Water is Weird • Water expands when it freezes, so it’s density is less than the liquid. That means that ice floats. • Which is good for the fish and other water creatures. Why?

  10. Density Labs • Use a balance to measure MASS • To measure Volume you use: • Graduated cylinder • Ruler • Beaker (not your first choice as it’s not very accurate) • Density = mass/volume

  11. It’s an ID number of sorts • The density of a substance is the SAME, not matter what size of the stuff you have. • If you divide a block of wood into three pieces or 30 the density of the wood is the same number! • You can use the density value to identify the substance that you have in your possession. (you can also use color and hardness)

  12. Don’t be Dense • So now, knowing about density, what does this common phrase mean?

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