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Properties of Matter

February 2/11/14

QuestionAnswer
What is the tendency of a liquid to resist flowing? Viscosity
What is the ability of a solid to be hammered without shattering? Malleability
What is the temperature at which a solid changes to a liquid? Melting Point
A physical property is any characteristic of a material that can be observed or measured without changing the __________ of the substances in the material. composition
TRUE or FALSE: A liquid with a high viscosity flows more slowly than a liquid with a low viscosity at the same temperature. True
TRUE or FALSE: Discovering which of two materials can scratch the other is a way to compare the hardness of the materials. True
TRUE or FALSE: Usually, people consider only one property when choosing a material. False
Two processes that are commonly used to seperate mixtures are ______ and ______ Filtration and Distillation
TRUE or FALSE: In a physical change, some of the substances in a material change, but the properties of the material stay the same. False
TRUE or FALSE: The substances in paraffin do not change when a candle burns. False
What is any property that produces a change in the composition of matter? Chemical Property
The property that describes how readily a substance combines chemically with other substances is _______ Reactivity
A ______ change occurs when a substance reacts and forms one or more new substances Chemical
When matter undergoes a chemical change, the composition of the matter ______ Changes
When matter undergoes a physical change, the composition of the matter _____________ Stays the same
What is any characteristic of a material that can be measured without changing the identity of the substances that make up the material? (change in color, shape, size, etc) Physical Property
What is the property of metals and alloys that allows heat or electrical charges to pass through the material easily? Conductivity
What is the temperature at which a substance changes to a gas? Boiling Point
What is the act of passing a substance such as water through a filter so as to remove solid particles from it? Filtration
What is the process that can separate two substances in a mixture by evaporating a liquid and recondensing its vapor? DIFF. WORDING What is the separation of mixtures based on different boiling points? Distillation
A change is size, shape, or state of matter? Physical Change
How can physical properties be used to separate mixtures? Separate mixtures based on appearance Magnetism(iron in sand)
How does distillation use a physical change to separate a mixture? Using physical change from liquid to gas to separate mixtures..... One substance with a lower boiling point boils first changing to a gas. This leaves behind the second liquid and they are separated.
What is a materials ability to burn oxygen? Flammability
What is a change from one substance to another? Chemical Change
Any solid that forms and separates from a liquid...? Precipitate
When can chemical properties be observed? Only when a substance is changing into a different substance
 

 



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