unit 1: Matter
Terms in this set (43)
anything that has mass and takes up space
a single kind of matter that is pure, meaning it always has a specific makeup - or composition - definite chemical and physical properties
a characteristic of a pure substance that can be observed without changing it into another substance
describes the ability to change into a new or different substance
the basic particle from which all elements are made
when atoms are combined by a force of attraction between two atoms
groups of two or more atoms held together by chemical bonds
Pure substance made of two or more different elements chemically combined in a set ratio
shows the elements in the compound and the ratio of atoms
An example of a homogeneous mixture that can be a solid or a liquid
the measure of the force of gravity on you
the measure of the amount of matter in an object
International System of Units (SI)
The system scientists use to measure the properties of matter.
The amount of space that matter occupies
Length X Width X Height
The mass of a material in a given volume
has a definite volume, but no definite shape
no definite shape, and no definite volume
A change in state from a solid to a liquid
a point where the particles of a solid substance are vibrating so fast that they break free from their fixed positions
the change in state from a liquid to a solid
A change in state when the particles gain enough energy to change from a liquid to a gas.
vaporization that takes place ONLY on the surface of a liquid
vaporization that takes place when a liquid changes to a gas below its surface as well as at the surface.
the temperature at which a liquid boils
Occurs when particles in a gas lose enough thermal energy to become a liquid. (opposite of vaporization)
Particles change from a solid state to a gas state without passing through the liquid state.
made of two or more substances - elements, compounds, or both - that are together in the same place but not chemically combined.
being able to see the different parts in a mixture
Substances so evenly mixed that you can't see the different parts in a mixture
Mass / Volume
any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance
Change in matter that produces one or more new substances (Chemical Reaction)
Law of Conservation of Mass (or Matter)
States that matter is not created or destroyed in any chemical or physical change.
the ability to do work or cause change
Definite shape and volume
state of matter that forms when heat energy is added to a neutral gas, causing its atoms or molecules to lose electrons
used to measure the volume of an irregular shaped object
a charged particle that forms when an atom or group of atoms gains or loses one or more electrons
a process in which atoms lose or gain electrons to become electrically charged particles called ions.
mixtures in which the particles of a material are spread out through the liquid or gas but are too large to stay mixed without being stirred or shaken (snow globe, Italian dressing)
a mixture that falls between solutions and suspensions. Particles are spread throughout the liquid or gas, they are small, and do not settle quickly. (Jello, Milk)
gas to solid
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