anything that has mass and takes up space
MATTER
the smallest unit of an element that retains the properties of that element
ATOM
one of the three forms that matter can take- solid, liquid, or gas
STATE of MATTER
a type of colloid in which liquid drops or solid particles are spread throughout a gas
AEROSOL
a pure substance that cannot be broken down into any simpler substances
ELEMENT
an original substance at the beginning of a chemical reaction
REACTANT
a substance that tastes sour and turns blue litmus paper red
ACID
a measure of the amount of matter in an object
MASS
a particle in the nucleus of an atom that carries one unit of positive electric charge
PROTON
the particular temperature for each substance at which it changes state from a solid to a liquid.
MELTING POINT
a type of colloid in which a solid is spread throughout a liquid
GEL
any substance that is formed by the chemical combination of two or more elements and acts like a single substance
COMPOUND
a new substance produced by a chemical change
PRODUCT
a substance that tastes bitter and turns red litmus paper blue
BASE
a measure of how much space an object takes up
VOLUME
a particle in the nucleus of an atom that has no net electric charge
NEUTRON
the particular temperature for each substance at which it changes state from a liquid to a gas
BOILING POINT
a type of colloid in which a gas is spread throughout a liquid
FOAM
a particle that contains more than one atom joined together
MOLECULE
another name for chemical change
CHEMICAL REACTION
neither acid or base
NEUTRAL
the force of gravity between earth and an object
WEIGHT
a particle in the space outside the nucleus of an atom that carries one unit of negative electric charge.
ELECTRON
the temperature at which a substance changes state from a liquid to a solid
FREEZING POINT
a type of colloid in which one liquid is spread throughout another
EMULSION
the energy of any moving object
KINETIC ENERGY
a change of matter that occurs when atoms link together in a new way, creating a new substance different from the original substance
CHEMICAL CHANGE
the strength of an acid
ACIDITY
a measure of how tightly packed the matter of an object is
DENSITY
an atom’s dense center
NECLEUS
a physical combination of two or more substances that are blended together without forming new substances
MIXTURE
a special type of mixture in which the particles of one material are scattered through another and block the passage of light without settling out
COLLOID
stored energy
POTENTIAL
a change of matter in size, shape, or state without any changes in identity
PHYSICAL CHANGE
the strength of a base
ALKALINITY