Physical Science Notes Physical Properties PHYSICAL PROPERTY A feature or characteristic of matter which can be observed without changing the identity of the matter Examples Color ID: 337094
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Slide1
Physical and chemical properties
Physical Science NotesSlide2
Physical Properties
PHYSICAL PROPERTY
- A feature or characteristic of matter which can be observed without changing the identity of the matter
Examples
:
Color
Density Conductivity
– thermal and electrical
Smell
Malleability
Melting
Point
Taste
Ductility
Boiling
Point
Texture
Solubility
Magnetism
ViscositySlide3
Malleability
Malleability
– how well something can be flattened or stretched without breaking
Metals tend to be malleable
Examples: gold and copperWood and glass are NOT malleableSlide4
Malleability
Apple's
new iPhone 6
Plus has an
aluminum shell for
lightness and apparently lives up to the other characteristic of aluminum — malleabilityIphone 6 Bend TestSlide5
Ductility
Ductility
-
the ability to be stretched into a
wire
Examples: copper, platinum, tungsten Slide6
Solubility
Solubility
-
how
well one material dissolves in another material. (Insoluble means cannot dissolve)
Things that affect solubility:Temperature – as temperature increases so does the rate of dissolving Stirring – speeds up dissolvingSmaller pieces/particles – dissolve faster than large pieces of materialAmount of solute – greater amounts of solute require longer times to dissolveSlide7
Parts of a Solution
Solute -
the chemical being dissolved: the material you add to a
solvent
Solvent
- a chemical that dissolves things: the material in which you add a soluteExample: Chocolate milk – the syrup is the solute and the milk is the solventSlide8
Magnetism
Magnetism
-
how
well something sticks to a
magnetExample: Iron, nickel, and cobalt are the three elements that are magnetic at room temperature.Slide9
Conductivity
Conductivity
-
There
are 2 kinds:
Thermal Conductivity – how well heat travels through a substance Electrical Conductivity – how well electricity travels through a substanceSlide10
Melting Point
Melting
Point
-
the
point at which a solid becomes a liquidSlide11
Boiling Point
Boiling
Point
-
the
point at which a liquid becomes a gasSlide12
Viscosity
Viscosity
- a
substance’s resistance to flow Slide13
Chemical Properties
CHEMICAL PROPERTY –
a property of matter that describes a substance based on its ability to
change
into a new substance with different propertiesSlide14
Flammability
F
lammability
– how well something reacts with oxygen to produce heat/flameSlide15
Reactions with Acid
Reactions with acid
– how well something reacts with an acid. Main reaction with an acid results
in bubbling.
When an acid reacts with another substance, usually hydrogen gas (which is highly explosive) is released.Slide16
Other Reactions
Other Reactions
– include heat being released, bubbling, strong odor, smoke, flame, change of color, etc.Slide17
Non-Reactivity
Non-Reactivity
– when something
fails
to
react.Example: Platinum dropped in acid has no reaction, nothing happens. Even when held into a flame, platinum has no reactionAnother example:Slide18
REMEMBER
Main
point to remember about Chemical
Reactions:
They
always produce a new substance – totally different than the substance you started withMost chemical reactions cannot be reversed