EVERYDAY SCIENCE

Detailed explanation-1: -Changes in the size or form of matter are examples of physical change. Physical changes include transitions from one state to another, such as from solid to liquid or liquid to gas. Cutting, bending, dissolving, freezing, boiling, and melting are some of the processes that create physical changes.

Detailed explanation-2: -Physical changes involve moving molecules around, but not changing them. Some types of physical changes include: Changes of state (changes from a solid to a liquid or a gas and vice versa) Separation of a mixture.

Detailed explanation-3: -The process of a solid becoming a liquid is called melting (an older term that you may see sometimes is fusion). The opposite process, a liquid becoming a solid, is called solidification.

Detailed explanation-4: -I. Physical Changes Here are some examples of physical changes: (1) any phase change. Moving between solid, liquid and gas involves only the amount of energy in the sample (this amount is the subject of future lessons). There is no effect on the chemical identity of the substance.

Detailed explanation-5: -Some common examples of physical changes are: melting, freezing, condensing, breaking, crushing, cutting, and bending.