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