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Physical Sci Vocab
| Term | Definition |
|---|---|
| matter | anything that has mass and takes up space |
| state of mater | any of the four physical forms of matter |
| solid | state of matter with a definite shape and volume |
| liquid | state of matter with a definite volume but no definite shape |
| gas | state of matter that has no definite shape of volume |
| physical change | change that does not produce a new substance |
| chemical change | change that produces new substances |
| freezing | change from a liquid to a solid |
| melting | change from a solid to a liquid |
| evaporation | change from a liquid to a gas at the surface of a liquid |
| condesation | change from a gas to a liquid |
| sublimation | change from a solid directly to a gas |
| deposition | change from a gas directly to a solid |
| displacement method | a procedure used to measure the volume of an irregularly shaped object by placing it in a known amount of water |
| density | a physical property relating the amount of matter in a substance to the volume of the substance |
| relative density | the comparison of one material as it relates to another (usually water) |
| density formula | density = mass/volume (d=m/v) |
| mass | the amount of matter in an object |
| volume | the amount of space an object takes up |
| element | substance that cannot be chemically broken down into simpler substances |
| atom | the smallest part of an element that can be identified as that element |
| nuclues | center (or core) of an atom |
| proton | particle that has a positive charge and a mass of 1 amu |
| neutron | particle that has no charge and a mass of 1 amu |
| electron | particle that has a negative charge and an extremely small mass |
| atomic number | number of protons in the nucleus of an atom |
| atomic mass | average mass of all of the isotopes of an element |
| mass number | number of protons and neutrons in an atom |
| energy level | place in electron cloud where an electron is most like to be found |
| isotope | atom of an element with the same number of protons as the other atoms but a different number of neutrons |
| chemical symbol | shortened way of writing the name of an element |
| periodic | repeating pattern |
| group | vertical column of elements in the periodic table |
| period | horizontal row of elements in the periodic table |
| metal | element that has the properties of shiny, luster, ductility, and malleablity |
| malleable | able to be hammered into different shapes |
| ductile | able to be drawn into thin wires |
| nonmetal | element that lacks most of the properties of a metal |
| halogens | elements that make up Group 17 in the periodic table |
| Noble Gases | elements that make up Group in the periodic table |
Created by:
angelaheath
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