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28 Cards in this Set
- Front
- Back
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Matter
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anything that has mass and takes up space
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mass
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the amount of matter in something
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weight
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the measure of the force of gravity pulling on an object
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volume
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the amout of space that something takes up
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states of matter
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solid, liquid and gas
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solid
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definite shape and volume - like ice. slow moving particles
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liquid
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definite volume faster moving particles - like water
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gas
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takes the shape and volume of containter - fast moving particles, like steam
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Boiling Point
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temp where a substance changes from a liquid to a gas
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Celsius scale
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the scale scientists use to measure temperature. 0 degrees Celsius is where water melts
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Density
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the amount of mass in a known volume of an object or substance
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Dissolve
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to form a substance that cannot be separated by physical means
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freezing point
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the point at which a substance changes from a liquid to a solid
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boiling point
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the temperature at which a substance changes from a liquid to a gas
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Insulate
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prevent energy from traveling
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insulator
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a material that does not let energy pass through it easily, Plastic, rubber and glass are examples
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thermal energy
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energy of moving particles.
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conductor
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a material that allows energy to pass through it easity. Heat, electriciy or sound energy pass through a conductor
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mixture
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two or more substances can be separated by physical means
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solution
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when a substance spreads out evenly into another so you cannot tell the substances apart.
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solubility
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the measure of how much one substance will dissolve in another
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physical property
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something that can be observed , measured, or changed without changing the substance itself
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relative density
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a comparison between the densities of two substances. a less dense substance will float on a more dense substance
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graduated cylinder
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measures a volume of liquid
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pan balance
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compares mass to a known mass
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triple beam balance
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used to find the mass of an object
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spring scale
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measures the force of gravity on an object to find its weight
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magnet
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attracts iron and other magnetic materials
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