Matching Pairs Physical and Chemical ChangesOnline version Study material over physical and chemical changes. by Cambria Crabtree 1 Chemical change 2 Elements, soil, gases, air, celestial objects 3 Physical change 4 Solid 5 Density, boiling point, melting point, solubility 6 Physical change example from a chemical equation 7 Flame appears 8 Gas 9 Chemical change example from a chemical equation 10 Liquid 11 Light, heat, sound A + Z --> A + Z Examples of energy Does not re-arrange the atoms or break bonds. Breaks bonds and forms new substances. Examples of matter X + Y --> XY Physical Properties of matter Chemical property Particles vibrate, particles tightly packed together, holds shape, particles lock in position. Particles are close together, takes shape of the container, particles slide past each other. Particles are far apart, fills the space the gas is in, particles move around freely