| A | B |
|---|
| atom | the smallest part of an atom that still has all the characteristics of that element |
| matter | anything that takes up space and has mass |
| organic | any compound that contains carbon |
| energy | the ability to cause change |
| compound | substance that chemically combines two or more different elements |
| molecule | particle of matter that covalently combines two or more atoms |
| inorganic | substance such as water that contains no carbon |
| element | substance made up of just one kind of atom |
| periodic table | a chart of the elements |
| evaporation | change of phase from liquid to gas |
| chemical reaction | process that combines 2 or more substances to form a new substance |
| biologist | scientist who studies living things |
| catalyst | speeds chemical reactions, but is not used up or changed |
| isotope | atoms of the same element with different numbers of neutrons |
| ionic | type of bond between two oppositely charged ions |
| ion | a charged atom |
| covalent | type of bond in which atoms share electrons |
| physical change | a change in which the original substance exists, but in a changed form |
| malleability | a metal's ability to pounded into flat sheets |
| ductility | a metals ability to be stretched into thin wires |
