click below
click below
Normal Size Small Size show me how
chapter3
Term | Definition |
---|---|
matter | Everything that has mass and takes upspace |
element | The ingredients that make up all other substances. Can't be broken down into other subtances |
metals | good conductors of electricity and heat. Can bend without breaking. Most have a gray color |
nonmetals | Do not conduct heat/ electricity very well. May be a gas or a solid |
Semi-metals | Sometimes like metals and sometimes like nonmetals |
atom | The smallest part of an element that still acts like that element |
Atomic therory | States that everything is made of atoms |
compound | A type of matter made of two or more elements |
molecule | Smallest particule,of a compound that still acts like that compound |
proton | Positive charge, found in nucles |
neutron | No charge , found in nucles |
electron | Negative charge, orbits charge the nulcles |
solid | Has definite volume or shape particles are very close together , and don't move past each other |
liquid | Has definite volume but no shape particles can move past each other. Takes shape of container |
gas | No definite volume or shape . particles spread at evenly and take shape of container . can be squeezed into smaller volume |
plasma | Like gas , but conducts electricity like a metal . occurs with a high temps or electric charge |
Melting point | Solid to liquid or liquid to solid . same temperature as a freezing point |
evaporation | When liquids become a gas |
condensation | When gas becomes a liquid . gas particles touch a cold surface and the temperature drops |
Boiling point | The temperature at which evaporation occurs |
mixture | Two or substances that mix together but each keeps its own identity |
solution | A mixture where substance spreads out evenly and will not settle |
solute | The substance being dissolved |
solvent | What the substance is dissolved in |
solubility | A way to measure how much a material dissolves into another |