1. Unit 2 Lesson 1 Properties of Matter
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2. Unit 1 Lesson 1 What Is Science?
Indiana Standards
8.1.6 Explain that elements and compounds have characteristic properties such as density, boiling points and melting points, that remain unchanged regardless of the sample size.
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3. Physical properties: 3 of 9
Unit 2 Lesson 1 Properties of Matter
Physical properties:
A characteristic of a substance that can be observed without changing the identity of the substance is called a physical property.
All of the senses can be used to observe physical properties.
Mass
Volume
Change in mass or volume without change in the identity of the substance.
&
State of matter – liquid, solid, or gas
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4. Physical properties: 4 of 9
Unit 2 Lesson 1 Properties of Matter
Physical properties:
Electrical conductivity is a measure of how well electric currents moves through a substance.
Density is the measure of the amount of matter in a given volume.
Thermal conductivity is the rate at which a substance transfers heat.
Solubility is the ability of a substance to dissolve in another substance.
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5. Physical properties: 5 of 9
Unit 2 Lesson 1 Properties of Matter
Physical properties:
Malleability is the ability of a substance to be rolled or pounded into various shapes.
Magnetic attraction is also a physical property that can be observed.
The shine, or luster, of a metal can be easily observed.
The melting point of a substance is the temperature at which it changes from a solid to a liquid.
Boiling point is the point at which a substance boils.
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6. (Identity Theft) Chemical properties: 6 of 9
Unit 2 Lesson 1 Properties of Matter
Chemical properties:
(Identity Theft)
A chemical property describes the ability of a substance to change into a new substance with different properties.
Chemical properties can be identified by the changes they produce.
The ability to rust or tarnish is a chemical property because, in each case, a metal changes to a different substance.
Flammability is the ability of a substance to burn.
Reactivity is the ability of a substance to interact with another substance and form one or more new substances.
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7. The difference between physical and chemical properties:
7 of 9
Unit 2 Lesson 1 Properties of Matter
The difference between physical and chemical properties:
Physical properties can be observed without changing the identity of a substance.
Chemical properties can be observed only by changing the identity of a substance.
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8. 8 of 9
Unit 2 Lesson 1 Properties of Matter
Forensic Science:
Forensic Science: the collection and study of physical evidence in a criminal investigation
Ashes from an arson scene can be heated to determine chemicals used to start a fire.
Flecks of paint and the analysis of fibers can provide clues to criminal cases.
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9. Characteristic Properties:
9 of 9
Unit 2 Lesson 1 Properties of Matter
Characteristic Properties:
properties unique to a substance
stay the same regardless of the amount of the sample
can be physical properties or chemical properties.
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