physical and chemical properties and changes by jordan parkinson
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Physical and Chemical Properties
andChangesBy Jordan Parkinson
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What are some Physical Properties?
• Appearance – Outward or visible aspect of a person or thing
• Color - A visual attribute of things that results from the light they emit or transmit or reflect
• Temperature - The degree of hotness or coldness of a body or environment
• Texture - The feel of a surface or a fabric• Odor - The property or quality of a thing that affects,
stimulates, or is perceived by the sense of smell• Melting Point - The temperature below which a liquid
turns into a solid• Boiling Point - The temperature at which a liquid boils
at sea level
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Examples of Physical Property
• Appearance – The desk had round corners and a square top• Color – The rainbow has many shades of color reflected
from rain in the sun• Temperature – The river was very cold when I felt it with my
feet• Texture – The shagged rug had a smooth and soft feel to it• Odor – The skunk smelled so bad after it sprayed something
near our camp• Melting Point – The ice began to melt after taking it out of
the freezer because the room temperature was 75 degrees• Boiling Point – The water began to boil at about 212 degrees
Fahrenheit
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What are some Chemical Properties?
• Flammability - The quality of being easily ignited and burning rapidly
• Toxicity - The degree to which something is poisonous• Oxidation - The combination of a substance with
oxygen• pH Indicator - A substance that indicates the
degree of acidity or basicity of a solution through characteristic color
• Reactivity - The tendency of a substance to undergo chemical reaction, either by itself or with other materials
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Examples of Chemical Property
• Flammability – The gas we used to start the fire ignited fast because it is extremely flammable
• Toxicity – The smoke in the air was extremely toxic because it hurt in our lungs when we breathed
• Oxidation – The nail began to rust after sitting in a bucket of water
• pH Indicator – The cherries are red due to their acidic level but would be blue to purple in a basic solution
• Reactivity – The plants in the front room grew faster than the plants in the TV room because the front room allows more direct sunlight to the plants
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What are some Physical Changes?
• Physical Change - a change from one state (solid or liquid or gas) to another without a change in chemical composition
• Absorption of water into a towel
• Crumpling of a piece of paper
• Pulling copper into a thin wire (change of shape)
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Physical Changes Con’t• Cutting wood apart
• Tearing a piece of tin foil
• Breaking glass
• Deflating a basketball
• Cloud forming in the sky
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What are some Chemical Changes?
• Chemical Change - A rearrangement of the atomic array of matter which results in a change of physical properties
• Burning of a log wood
• Oxidation – rusting or tarnishing
• Combustion
• Mixing chemicals
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Chemical Changes Con’t
• Rotting of fruit
• Cooking rice
• Explosion of fireworks
• Lighting a match
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Chemical Changes Con’t
• Roasting a marshmallow
• Adding food coloring to icing
• Frying a egg