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C.S. Brown 8th grade

General Chemistry

Matter Anything that has mass and takes up space.
Volume the measure of the size of a body or region in three-dimensional space
Meniscus the curve at a liquid's surface by which one measures the volume of the liquid
Mass a measure of the amount of matter in an object
Weight the measure of the gravitational force exerted on an object
Inertia the tendency of an object to resist being moved
Physical property characteristic of a substance that does not involve a chemical change, such as density, color, hardness
Chemical property a property of matter that describes a substance's ability to participate in chemical reactions
Chemical change occurs when one or more substances change into entirely new substances with different properties
Physical change a change of matter from one form to another without changing its chemical properties
States of Matter the physical forms of matter, which include solid, liquid, and gas
Solid the state of matter that has a definite shape and definite volume
Liquid the state of matter that has a definite volume, but no definite shape; takes on the shape of its container
Gas the state of matter that has no definite shape and no definite volume
Change of State the change of a substance from one physical state to another
Surface tension the force that acts on the particles at the surface of a liquid
Viscosity the resistance of a liquid (or gas) to flow
Melting the change of state where a solid becomes a liquid by adding heat
Evaporation the change of state where a liquid becomes a gas
Condensation the change of state from a gas to a liquid
Sublimation the change of state from a solid directly to a gas
Element a substance that cannot be broken down into simpler substances by chemical means
Metal an element that is shiny and is a good conductor of heat and electricity
Nonmetal an element that is a poor conductor of heat and electricity
Metalloid an element that has properties of both metals and nonmetals
Compound a substance made up of atoms of two or more different elements chemically combined
Mixture a combination of two or more substances that are not chemically
Solution a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase
Solute in a solution, the substance that dissolves in the solvent
Solvent in a solution, the substance in which the solute dissolves
Periodic describes something that occurs or repeats at regular intervals
Period a horizontal (across) row of elements in the periodic table
Group a vertical (up and down) column in the periodic table
Atom smallest unit of matter
Electron negatively charged particle surrounding the nucleus of an atom
Proton positively particle in the nucleus of an atom
Neutron neutrally charged particle in the nucleus of an atom
Created by: tudivaughan



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