ساينس الصف الرابع الإبتدئي – الفصل الدراسي الاول In This part we will study : 1. Physical change 2.Chemical change Physical change: I t is a change in the appearance (shape) of matter without any change in its structure. Examples of physical change 1. The ice cycle. (water changes from a state to another by heating or cooling). 2. Melting of wax and melting of chocolate. 3. Grinding of sugar and grinding of chalk. 4. Dissolving of table salt in water and dissolving of sugar in water. 5. Bending (Ductility) of metals. • Melting, evaporation, condensation and freezing are considered physical changes. بالتوفيق مستر احمد الباشا