| A | B |
| A change in matter in which ,at least, one new substance is formed with new properties | chemical Change |
| A homogeneous mixture of a metal with one or more metals or non- metals. | Alloy |
| The smallest unit of matter that can take part in a chemical change | Atom |
| A negatively charged particle | electron |
| A type of mechanical mixture in which extremely small particles of one or more substances are evenly distrubuted. | colloid |
| A pure substance made up of two or more elements that are chemically combined. | compound |
| The amount of mass in a certain unit volume of a substance | density |
| A term applied to pure substances and to mixtures that are of a uniform composition throughout. | Homogeneous |
| A chemical element that shares certain properties :usually,grey in colour and with a shiney lustre. | metal |
| A particle carrying no electric charge and forming part of a nucleus of an atom | Neutron |
| A change in matter in which no new substance is formed | Physcial change |
| A positively charged particle forming part of the nucleus of an atom. | Proton |
| A homogeneous mixture of two or more pure substances. | Solution |
| A mechancial mixture consisting of a liquid or gas with small particles that are distributed through it,but that seperate if the __________ is left undisturbed. | Suspension |
| The measurement of the amount of space occupied by a substance | volume |