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PHYSICAL PROPERTIES OF MATTER

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Page 1: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

PHYSICAL PROPERTIESOF MATTER

Page 2: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Physical Property*: can be observed or measured without changing the matter’s identity.

Page 3: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

EXAMPLES OF PHYSICAL PROPERTIES Magnetism Ability to conduct

electric current Strength Flexibility Color Shape

Odor Weight Volume Texture State Density

Page 4: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Density*: the amount of matter in a given space, or volume.

Page 5: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

A golf ball and a ping pong ball have similar volumes, but a golf ball has more mass than a ping pong ball does so the golf ball has more density.

Density is a physical property.

Page 6: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Solving for Density:Density = Mass

Volume

Page 7: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Densities of Common SubstancesSubstance Density(g/

cm )Substance Density

(g/cm )Helium (gas)

0.000001663

Zinc (solid)

7.13

Oxygen (gas)

0.001331 Silver (solid)

10.50

Water (liquid)

1.00 Lead (solid)

11.35

Pyrite (solid)

5.02 Mercury (liquid)

13.55

3 3

Page 8: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

A block of pine wood has a mass of 120 g and a volume of 300cm. What is the density of the wood?Will this block of pine float in a pool of water? Why or why not?

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Page 9: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Answer:0.4g/cm

It will float because it is less dense than water

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Page 10: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

A sample of metal has a mass of 3,623 grams and a volume of 508 cm. What metal is it?

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Page 11: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Answer:Zinc

Page 12: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Physical Change*: a change that affects one or more physical properties of a substance.

Page 13: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Examples of physical change: Freezing water to ice

Ice is still water Sanding a piece of wood

Saw dust is still wood Dissolving sugar in water

When water is evaporated, the sugar remains

Page 14: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

More examples: Breaking Melting Freezing Cutting Crushing Dissolving

Page 15: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Physical changes do not change the identity of the matter involved. A stick of butter can be melted and poured on popcorn and still be called butter. Although the shape has changed, butter is still butter.

Page 16: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

What physical property do the following substances have in common? Water, oil, mercury and alcohol?

Page 17: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Answer:They are all liquids

Page 18: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Observe your sugar cube.

Write down three physical properties you observe.

Page 19: PHYSICAL PROPERTIES OF MATTER. Physical Property*: can be observed or measured without changing the matter’s identity

Write three things you could do to the sugar cube to cause it to undergo a physical change.