Final answer:
During a physical change, the particles in a substance undergo changes in their physical properties, such as shape, size, or state of matter.
Step-by-step explanation:
During a physical change, the particles in a substance do not change their chemical identities. Instead, they undergo changes in their physical properties, such as shape, size, or state of matter (solid, liquid, or gas). These changes occur due to the rearrangement or reorganization of the particles. For example, during the physical change of melting ice to water, the particles in the ice gain enough energy to break their rigid arrangement and become more free-flowing, resulting in the transition from a solid to a liquid state.
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