click below
click below
Normal Size Small Size show me how
Chapter 3 Vocab
Term | Definition |
---|---|
Matter | Everything that has mass and takes up space |
Element | The ingredients that make up all other substances. Can't be broken down into other substances |
Metals | Good conductors of electricity and heat. Can bend without breaking. Most have grey colors |
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 atom that still acts like an element |
Atomic Theory | States that everything is made of atoms |
Compund | A type of matter made of two or more elements |
Molecule | Smallest particle of a compound that still acts like a compound. |
Proton | Positive charge. Found in the nucleus |
Neutron | No charge. Found in the nucleus |
Electron | Negative charge. Orbits the nucleus |
Solid | Has a definite volume and a definite shape. Particles are very close together, and don't move past each other. Keeps it's shape |
Liquid | Has a definite volume but not shape. Particles can move past each other. Takes shape of container |
Gas | No definite volume or shape. Particles spread out eventually and take shape of container. Can be squeezed into smaller volume |
Plasma | Like gas but conducts electricity like metal. Occurs with high temps or electric charge |
Melting Point | Solid to liquid or liquid to solid. Same temperature as freezing point |
Evaporation | When liquids become a gas |
Condensation | When gas becomes a liquid. Gas particles touch a cold surface and the temp drops |
Boiling Point | The temp at which evaporation occurs |
Mixture | Two or substances that mix together but keeps it's own identity |
Solution | A mixture where substances spreads out evenly and will not settle |
Solute | The substance being dissolved |
Solvent | What the substance is dissolved in |
Solobility | A way to measure how much a material dissolves into another |