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Burning wood.

Mixing acid and base.

Digesting food.

Heating sugar to form caramel.

Rusting of iron.

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blob:3E3D88FB-86E3-416B-A24A-716DB11DE674

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Physical and Chemical Changes: Chemistry for Kids - FreeSchool

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*Crushing a can
* ice cube melting
*Boiling water
*Shredding paper
*Chopping wood

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* Reactivity with other *chemicals.

*Toxicity.

Coordination number.

Flammability.

Enthalpy of formation.

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* color
*Density
*volume
* mass
* boiling point

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What are the difference between chemical & physical changes

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What are the difference between chemical & physical changes

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the physical change in a substance doesn't change what the substance is. And chemical changes has reactions and energy is given or absorbed.

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a change in their chemical properties or composition, resulting in the formation of at least one new substance, Chemical changes occur when a substance combines with another to form a new substance

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a physical change is a type of change affecting the form of a chemical substance. The size or shape of matter may be changed, but no chemical reaction occurs.