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What is a physical change?
A change in which no new substance is formed and the change is usually reversible
What is a chemical change?
A change in which one or more new substances are formed with different properties
Give two examples of physical changes.
Melting of ice, dissolving sugar in water, cutting paper, bending wire
Give two examples of chemical changes.
Burning of wood, rusting of iron, curdling of milk, cooking food
What is rusting?
A chemical change where iron reacts with oxygen and water to form iron oxide (rust)
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