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Matter Review
Atoms and Matter
Question | Answer |
---|---|
Matter | Anything that has mass and takes up space |
Chemistry | The study of matter and how matter changes |
atom | basic particle from which all mater is made |
proton | Positive particle of the atom that is in the nucleus |
neutron | A neutral particle of the atom that is in the nucleus |
electron | negative particle of the atom that circles the atom very fast |
Solid | state of matter that has definite shape and definite volume |
Crystalline Solid | type of solid in which the particles are arranged in a crystal patter. Has a definite melting point |
Amorphous Solid | type of solid in which the particles have no particular pattern. Does not have a definite melting point. |
Liquid | state of matter that has no definite shape and a definite volume. |
Gas | state of matter that has no definite shape and no definite volume. |
Melting | When a solid's particles begin to vibrate and move away from each other to form a liquid |
Freezing | When a liquid's particles begin to slow down a move closer to one another forming a solid. |
Vaporization | When a liquid's particles begin to move extremely fast causing the liquid to become a gas. |
Condensation | When a gas's particles begin to slow down causing the gas to become a liquid. |
physical property | A characteristic of a pure substance that can be observed without changing it into another substance. |
chemical property | A characteristic of a pure substance that describes its ability to change into a different substance. |
density | The measurement of how much mass of a substance is contained in a given volume. |
endothermic change | A change in which energy is taken in. |
exothermic change | A change in which energy is given off. |
physical change | A change in a substance that does not change its identity. |
chemical change | A change in which one or more substances combine or break apart to form new substances. |
electromagnetic energy | A form of energy that travels through space as waves. |
potential energy | energy that is stored in an object |
kinetic energy | energy of motion of an object |