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Burning wood
Souring milk.

Heating sugar to make caramel
Digesting food.
Cooking an egg.

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مدارس الحصاد

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Crushing a can.
Melting an ice cube.
Boiling water.
Mixing sand and water.
Breaking a glass.

Videos of physical change

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Heat of combustion
Chemical stability
Flammability
Reactivity with other chemicals
Coordination number
Example Pic #1

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color
density
volume
mass
boiling point

Example pic #1

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Difference between Physical and Chemical reactions

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Difference between Physical and Chemical reactions

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A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

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Chemical change involves one or more substances and can become a new substance or changes their properties.

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Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.