Term | Definition |
Matter | Everything that has mass and takes up space. |
Element | The ingredients that make up all other substances.Can't be broken into other
substances. |
Metals | Good conductors of electricity and heat.can bend without breaking.Most have a gray color. |
Nonmetals | Don't conduct heat/electricity very well.May be gas or solid. |
Semi-Metals | Sometimes like metals and sometimes like nonmetals. |
Atom | The smallest part of a element that still acts like a element. |
Atomic Theroy | States that everything is made of atoms. |
Compound | A type of matter that is made of two or more elements. |
Molecule | Smallest part 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 around the nucleus |
Solid | Has a definite shape and volume. Particles are very close together,and don't move past each other. Keeps shape |
Liquids | Definite volume but now definite shape. Particles glide by each other. |
Gas | No Definite volume or shape. particles spread. Can be squeezed into a smaller container |
Plasma | Like a gas, but conducts electricity like a metal. |
Melting Point | When liquid to solid or solid to liquid. same temp as freezing point. |
Evaporation | when a liquid turns to a gas |
Condunsation | When a gas turns to a liquid |