Physical change refers to a change in the physical properties of a substance, such as its shape, size, or state of matter. For example, melting ice into water or cutting a piece of paper are examples of physical changes. It's interesting how substances can transform without altering their chemical composition.
A physical change is a type of change in which the physical properties of a substance are altered without any change in its chemical composition. In a physical change, the substance remains the same at the molecular or atomic level, but its appearance or state may change. Examples of physical changes include changes in state (solid to liquid, liquid to gas), changes in shape, size, or color, and changes in density. Physical changes are typically reversible, meaning the original substance can be restored without altering its fundamental chemical structure.
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Physical change refers to a change in the physical properties of a substance, such as its shape, size, or state of matter. For example, melting ice into water or cutting a piece of paper are examples of physical changes. It's interesting how substances can transform without altering their chemical composition.
Answer:
A physical change is a type of change in which the physical properties of a substance are altered without any change in its chemical composition. In a physical change, the substance remains the same at the molecular or atomic level, but its appearance or state may change. Examples of physical changes include changes in state (solid to liquid, liquid to gas), changes in shape, size, or color, and changes in density. Physical changes are typically reversible, meaning the original substance can be restored without altering its fundamental chemical structure.