| A | B |
|---|
| Matter | anything that takes up space and has mass |
| Element | a substance that cannot be broken down and is on the periodic table |
| Density | the amount of matter found in a particular volume |
| Metalloid | an element with the characteristics of both a metal and a nonmetal |
| Semiconductor | substance that can conduct electricity only under certain conditions |
| Mixture | two or more substance mixed but not chemically combined |
| Thermal energy | the energy of particles |
| Malleable | can be pounded or made into shapes |
| Viscosity | the resistance of a liquid to flowing |
| Solid | state of matter with a definite volume and a definite shape |
| Liquid | state of matter with a definite volume and no definite shape |
| Gas | state of matter with no definite volume and no definite shape |
| Physical change | changes the appearance of a substance but not its identity |
| Chemical change | changes something into a new substance with new properties |
| Melting | changing from a solid to a liquid |
| Freezing | changing from a liquid to a solid |
| Condensation | changing from a gas to a liquid |
| Evaporation | changing from a liquid to a gas |
| Sublimation | changing from a solid to a gas |
| Deposition | changing from a gas to a solid |
| Volume | the amount of space something takes up |
| Corrosion | another word for rust |
| Compound | two or more elements chemically combined |
| Mass | the amount of matter found in an object |
| Weight | the pull of gravity on an object |
| Metal | elements that are hard shiny malleable and ductile |
| Nonmetal | elements that are soft dull and brittle |
| Ductile | can be drawn out into a wire |
| Physical property | a property that can be seen without changing into a new substance |
| Chemical property | a property that can only be seen when you change something into a new substance |
| Atom | the smallest particle of an element |
| Solution | the best mixed mixture |
| Alloy | a mixture of two metals or a metal and a nonmetal |
| Law of conservation of mass | matter can not be created or destroyed |
| Neutron | neutral particle in an atom |
| Proton | positive particle in an atom |
| Electron | negative particle in an atom |
| Atomic number | number on the periodic table that tells the number of proton and electrons |
| Atomic mass | the number of protons plus neutrons |
| Periodic table | table created by Mendeleev to organize the elements |
