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13 Cards in this Set
- Front
- Back
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Matter
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"stuff" of the universe
anything that has MASS & VOLUME ex: glass, air, planets, students |
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Substance
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type of matter that has a defined, fixed composition
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Physical properties
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properties that a substance shows by ITSELF without changing into or interacting with another substance
ex: color, melting point, electrical conductivity, and density |
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Physical change
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when a substance alters its physical form, not its composition
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Chemical properties
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properties that a substance shows AS it changes into or interacts with another substance
ex: flammiblity, corrosiveness, and reactivity with acids |
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Chemical reaction
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when a substance is converted into a different substance
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Solid
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a substance with a FIXED shaped that does not conform to the container shape
particles CLOSE together and ORGANIZED |
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Liquid
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conforms to the container shape but fills the container only to the extent of its olume
forms a surface particles CLOSE, but DISORGANIZED |
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Gas
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substance that conforms to the container shape, but FILLS the ENTIRE container
NO SURFACE particles FAR apart and DISORGANIZED |
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What energy situation is favored in nature?
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Situations that of lower energy are favored over those with higher energy
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Mass
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refers to the quantity of MATTER an object contains
constant |
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Volume
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amount of space an object occupies
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weight
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depends on mass and strength of the gravitational field
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