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unit e

QuestionAnswer
a mixture of substances that are blended so completely that the mixture looks the same everywhere. solution
the smallest unit of an element that retains the properties of that element. atom
a particle in the nucleus of an atom that carries one unit of positive electric charge. proton
a measure of the amount of matter in an object. mass
a substance that tastes sour and turns blue litmus paper red acid
a particle in the nucleus of an atom that has no net electric charge. neutron
a measure of how much space an object takes up. volume
a substance that tastes bitter and turns red litmus paper blue. base
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
to prevent heat from passing through. insulate
a particle that contains more than one atom joined together. molecule
a anything that has mass and takes up space. matter
a physical combination of two or more substances that are blended together without forming new substances. mixture
an atom's dense center, where most of its mass is. nucleus
a mixture in which suspended particles can easily be seen. suspension
any substance that is formed by the chemical combination of two or more elements and acts like a single substance. compound
a pure substance that cannot be broken down into any simpler substances. element
a particle in the space outside the nucleus of an atom that carries one unit of negative electric charge. electron
the passing of heat through a material while the material itself stays in place. conduction
a measure of how tightly packed the matter in an object is. density
an original substance at the beginning of a chemical reaction. reactant
neither acid nor base. neutral
a substance such as litmus paper whose color changes when it is mixed with an acid or a base. indicator
the energy of any moving object. kinetic energy
a new substance produced by a chemical change. product
one of the three forms that matter can take- solid, liquid, or gas. state of matter
the force of gravity between Earth and an object. weight
the transfer of heat through electromagnetic rays. radiation
stored energy. potential energy
the flow of heat through a liquid or a gas, causing hot parts to rise and cooler parts to sink. convection
Created by: s732614