PHYSICAL CHANGE
Physical Changes are changes in the form or appearance of a substance, but no new substance is formed. These changes are usually reversible.
Key Features of Physical Changes:
1. No new substance is formed.
2. Only physical properties change (like shape, size, state, or texture).
3. Usually reversible.
4. The chemical composition remains the same.
Examples of Physical Changes:
Melting of ice
Boiling of water
Dissolving sugar in water
Breaking a glass
Cutting paper
Freezing juice into ice cubes
Folding clothes
Signs of a Physical Change:
Change in shape or size
Change in state (solid ↔ liquid ↔ gas)
No new odor or color (unless due to physical mixing)
No heat or gas production (unless heated externally)
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