Matching Pairs Topic 1 Vocab - 6th GradeOnline version Vocab by Jordan Redford 1 Thermal Energy 2 Compound 3 Temperature 4 Distillation 5 Elements 6 Density 7 Substance 8 Mass 9 Chemical Properties 10 Matter 11 Atom 12 Physical Property 13 Homogeneous Mixture 14 Weight 15 Heterogeneous Mixture 16 Physical Change 17 Volume 18 Molecule 19 Law of Conservation of Mass 20 Mixture 21 Chemical Change the amount of space that matter occupies a characteristic that can be observed without changing the matter into another type of matter separating liquids by boiling them characteristics that describe something's ability to become something else a measure of the force of gravity on an object a group of two or more atoms held together by chemical bonds a change in matter that produces one or more new substances a single kind of matter that always has a specific makeup, or composition the total energy of the motion of all the particles in an object. It naturally flows from warmer matter to cooler matter. a mixture that can be easily separated the basic unit from which all matter is made a measure of the mass of a material in a given volume alters the form or appearance of matter but does not turn any substance in the matter into a different substance the amount of matter in an object a substance made of two or more elements that are chemically combined in a set ratio A mixture that is difficult or impossible to separate the fact that matter is not created or destroyed in any chemical or physical change substances that are made up of only one type of atom made up of two or more substances that are together in the same place, but their atoms are not chemically bonded a measure of how hot or cold something is anything that has mass and takes up space