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40 Cards in this Set
- Front
- Back
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the smallest particle of an element
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atom
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A small particle in the nucleus of the atom, wiht no electrical charge
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neutron
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A small, postively charged particle in the nucleus of the atom
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proton
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A group of atoms that are joined togheter and act as a single unit.
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Molecule
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The measurment of how much matter it contains
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mass
measured in kilograms |
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Anything that has mass and takes up space
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matter
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A measure of the force of gravity on you.
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weight
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The force that causes two masses to accelerate towards each other
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gravity
gravity is the force that causes all thigs near the Earth to accelerate toward the center of the Earth |
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the amount of space that matter occupies
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volume
measured in cubic centimeters, milliliters, liters, and other units |
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Relates the mass and volume of an object or material
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density
g/cm3 |
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A substance that cannot be broken down into other substances bu chemical or physical means.
Give example |
element
ex- silver |
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A substance made of two or more elements that are chemically combined
give example |
compound
ex- water and carbon dioxide |
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Two or more substances that are in the same place but are not chemically combined
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mixture
ex- water, sugar, flavorings..added together |
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A very well-mixed mixture
Give example |
solution
ex- cranbarry juice, sugarwater |
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A quality of a substance that never changes and can be used to identify the substance.
Give example |
characteristic properties
ex-all diamonds have the same hardness |
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alters the form of a substance, but not its identiy
give example |
physical change
ex- when you boil water, the water is still present but as water vapor instead of water |
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A change in which one or more substances combine or break apart to form new substances.
give example |
chemical change
ex- heating table sugar unitl it changes to caramel |
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the total energy of a substance's particles due to their movement or vibration
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thermal energy
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A measure of the average energy of motion of the particles of a substance
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temperature
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A state of matter that has a definite volume and a definite shape
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solid
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A substance that is made up of crystals in which particles are arranged in a regular, repeating patern.
give example |
crystalline solid
ex- snow, sugar |
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A solid made up of particles that are not arranged in a regular pattern
give example |
amorphous solid
ex- plastic |
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A state of matter that has no definite shape but a definite volume
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liquid
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A state of matter with no definite shape or volume
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gas
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Any substance that can flow
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fluid
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The resistance of a liquid to flowing
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viscosity
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low viscosity fluid flows _____
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fast
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high viscosity fluid flows ______
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slow
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The change in state from a solid to a liquid
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melting
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when is the melting point of water?
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0 degrees C
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The change of state from liquid to solid-just the reverse of melting
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freezing
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what is the freezing point of water?
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32 degrees f
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The change of state from a liquid to a gas
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vaporization
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The proces that occurs when vaporizatioin takes place only on the surface of a liquid.
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evaporation
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The proces that ocurs when vaporization takes place inside a liquid as well as on the surface.
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boiling
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The temperature at which a substance changes from a liquid to a gas
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boiling point
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the change of state from a gas to a liquid
give example |
condenstation
ex: clouds typically form when water vapor in the atmosphere condense into liquid droplets |
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The change in state from a solid directly to a gas without passing through the liquid state.
give example |
sublimation
ex: the change that dry ice undergoes |
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How do you calculate the volume of a block?
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length x width x height
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How do you find the density of a block?
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Mass
______ volume |
