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Properties of Matter

Discover the fundamental properties of matter including mass, volume, and density. Learn how these properties can be observed and measured, and how they affect the behavior of different substances. Explore the connection between density and weather.

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Properties of Matter

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  1. Properties of Matter Amole

  2. What is Matter? • Anything that has mass and takes up space • Basically, if it has mass and volume….it’s matter! • Mass and volume are two properties of matter. • So, is air matter? How do you know?

  3. Properties of Matter Physical Properties Chemical Properties A property of matter that can only be observed by altering the composition of the substance Examples: Flammability Reactivity • Any property that can be observed without changing the object/substance • Anything that can be measured • Examples: • Mass, volume, density • Color, texture, shape • Boiling point, freezing point

  4. Mass • The amount of matter in a substance (dots) • Which boxes have the same mass? A B C

  5. Volume • The amount of space an object takes up. • Which box has the most volume? B C A

  6. Density • The amount of mass per unit volume (M/V) • It is a comparison between mass and volume • It describes how “tightly” particles are packed together in a given space. • Which box is more dense? A B

  7. How does mass and volume affect density? • Remember density can be calculated by dividing mass by volume to determine how tightly packed particles are. • Which boxes have the same mass? • Which have the same volume? • Which box is the most dense? B and C A and B A Volume= 5 mL Volume= 5 mL Volume= 1 mL A B C 2/5= 0.4 g/mL 2/1 = 2g/mL 20/5 = 4 g/mL

  8. Density Rule • A substance with a lower density will “float” on top of a substance with a higher density. • Which substance has the highest density? Least dense: Yellow/ Lt.Gray Then: Blue/ Dk. Gray Most dense: Red/ Black

  9. What does density have to do with weather? • Air Pressure has a large impact on weather. • Density is affected by pressure. • More pressure forces particles to be packed tighter and increases density. • Also, density dictates the movement of winds. • But…..how can we be sure air has a density???

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