The bat and the original piece of wood are still the same chemical substance. Make sure you do the Microseparation activity . Another important physical property of matter is phase. The three most common phases of matter are solids, liquids, and gases. Water can exist in the solid, liquid, or gas phase.
Most substances can exist in different phases.
Changes in phase are physical changes. For example, the physical properties of ice and steam are quite different but they are both water. There is no change in the chemical nature of the two substances. Phase changes include melting, freezing, condensation, evaporation, and sublimation. Melting occurs when a solid changes to a liquid.