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Science unit 2 lesson 2 - properties of matter
Terms in this set (25)
a characteristic of a substance that can be observed and measured without changing the identity of the substance.
what can be used to detect physical properties?
all of your senses
what are some physical properties?
color, shape, size and texture
the material of a physical property [does or does not] keep its identity?
boiling water even though some water turns to gas is this a change in identity?
NO - it is still "water" whether it is solid, liquid or gas
List the 9 common physical properties
measure the amount of mass in a given volume
D = M/V
measure of how well an electric current can move thru a substance
the rate at which a substance transfers heat
the ability of a subtance to dissolve in another substance (like coolaid in water)
the ability of a substance to be rolled or pounded into various shapes
the temperature at which a substance changes from solid to liquid
point at which a substance boils
a substance's ability to change into a new substance with different properties
examples of common chemical properties
reactivity with substances such as oxygen, water and acids
what is a chemical property for the metal iron?
what is a chemical property of silver?
when wood burns, new substances such as water, carbon dioxide and ash are formed.
what is the chemical reaction of flammability of wood?
the ability of a substance to interact with another substance and form one or more new substances.
what is reactivity?
A substance always has physical and chemical properties T/F?
Give an example of something that has physical and chemical properties.
A Nail - can be bent (physical) and can rust (chemical)
A log - has mass (physical) can be burned (chemical)
the collection and study of physical (and chemical) evidence in a criminal investigation.
What is forensic science?
properties unique to a substance
What are characteristic properties?
through its characteristic properties. Gold for example vs. iron pyrite. Gold flattens when hit, iron pyrite shatters. gold keeps its shine, while iron pyrite turns green if exposed to water. Also by their density. Gold is more dense.
how can physical and chemical properties identify a substance?
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