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27 Cards in this Set
- Front
- Back
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the amount of matter in an object
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mass
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the smallest unit of an element
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atom
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center of an atom
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nucleus
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what is needed to change the state of matter
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energy and heat
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the changing of a gas into a liquid
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condensation
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what is water's melting point
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0'C
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the slow change from a liquid into a gas at temperatures well below the boiling point
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evaporation
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melting/boiling points depend on the materials
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pressure
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the increase in an objects volume due to change in heat
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thermal expansion
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the decrease in an objects volume due to change in heat
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thermal contraction
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what does thermal mean
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warm
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how does a thermometer work
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use the thermal expansion and contraction
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what chemical/ property describes the ways a substance reacts with others
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flammibility/chemical property
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what gas has a high flammibility
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methane
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elements in the same periodic table share what type of property
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chemical
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when you mix acids and bases what happens
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it turns into salt
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give examples of physical properties
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mass, volume,weight,density,color,hardness,odor,and magnetism
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what are some insulators
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glass,rubber,and plastic
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what are the symbols of silicon and neon
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(Si) and(Ne)
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what is the formula for density
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mass volume
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the objects mass is 60 mL and its volume is 30ml. what is the density of the object
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2 (ml)
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what is the formula for volume
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lengthxwidthxheight
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a cube is 20 cm long ,60 cm wide ,and 5 cm high. what sis the volume of the cube
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6,000 cm
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what are the 3 states of matter.which is the densest.which is least dense
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1. solid,liquid,gas 2.solid 3.gas
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what are conductors
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copper,iron,gold,aluminum,steel,silver
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if 1 newton = .225 pounds , then if an object weighs 30 newtons how many pounds does this equal
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6.750
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find the density of a substance with a mass of 20 and a volume of 5
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4
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