Matter Flashcards

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1
Q

matter that has no definite volume and no definite shape

A

gas

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2
Q

matter with a definite volume but no definite shape

A

liquid

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3
Q

anything that takes up space and has mass

A

matter

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4
Q

matter that has a definite volume and a definite shape

A

solid

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5
Q

gas state of a substance that is normally a solid or a liquid at room temperature

A

vapor

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6
Q

change of state from a gas to a liquid

A

condensation

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7
Q

change of state of a solid to a gas without going through the liquid state

A

sublimation

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8
Q

change of state of a liquid into a gas

A

vaporization

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9
Q

change of state of a gas to a solid without going through the liquid state

A

deposition

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10
Q

vaporization that occurs only at the surface of a liquid

A

evaporation

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11
Q

measure of the average kinetic energy of all the particles in an object

A

temperature

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12
Q

amount of force applied per unit of area

A

pressure

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13
Q

the amount of matter in an object; does not depend on gravity

A

mass

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14
Q

property of an object that depends on the amount of gravity

A

weight

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15
Q

combination of two or more substances that are physically blended together

A

mixture

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16
Q

a small particle that is a building block of matter

A

atom

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17
Q

at the center of an atom is its ___

A

nucleus

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18
Q

a homogeneous mixture

A

solution

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19
Q

substance in a solution that is present in a larger amount

A

solvent

20
Q

type of mixture in which the individual substances are not evenly mixed

A

heterogeneous

21
Q

a substance that consists of just one type of atom

A

element

22
Q

in a ___ mixture the particles of individual substances are so small and well mixed that they are not visable, even with most high powered microscopes

A

homogeneous

23
Q

a type of substance containing atoms of two or more different elements

A

compound

24
Q

to form a solution by mixing it evenly

A

dissolve

25
Q

three subatomic particles

A

proton, neutron, electron

26
Q

mass per unit volume of a substance

A

density

27
Q

the amount of space an object takes up

A

volume

28
Q

ice floats because it is ___ ___ than water

A

less dense

29
Q

During a __ change, matter’s identity does NOT change

A

physical

30
Q

A physical change might mean a change in (4)

A

size, shape, form, state of matter

31
Q

During a __ change, matter’s identity DOES change due to the rearrangement of its __

A

chemical, atoms

32
Q

When thermal energy is added to a solid, the particles in the solid move __ and the temperature __

A

faster, increases

33
Q

temperature at which a solid changes into a liquid

A

melting point

34
Q

temperature at which a liquid changes into a solid

A

freezing point

35
Q

physical or chemical change?

a log is cut to make firewood

A

physical

36
Q

physical or chemical change?

firewood is burned

A

chemical

37
Q

physical or chemical change?

clay is molded into the shape of a vase

A

physical

38
Q

physical or chemical change?

an iron fence rusts

A

chemical

39
Q

physical or chemical change?

bubbles form when you combine two liquids

A

chemical

40
Q

physical or chemical change?

you stir salt into water and it dissolves

A

physical

41
Q

physical or chemical change?

water vapor condenses

A

physical

42
Q

physical or chemical change?

milk goes sour

A

chemical

43
Q

physical or chemical change?

butter melts on warm breakd

A

physical

44
Q

physical or chemical change?

you light a match

A

chemical

45
Q

physical or chemical change?

an explosion in an action movie

A

chemical

46
Q

physical or chemical change?

rubbing alcohol evaporates in your hand

A

physical

47
Q

three ways to speed up a chemical reaction

A
  • increase temperature
  • increase reactant concentration
  • increase reactant surface area