(unit 1)_ CHANGES IN MATTER AND TYPES OF CHANGES

PHYSICAL CHANGES*

The susbstance changes* but matter does NOT change.

Ex: water freezes*, but it is still water



CHEMICAL CHANGES

New substances are created and matter changes.

Ex: Wood changes into ashes* and gases when it burns.


TYPES OF CHANGES

• Irreversible: matter CANNOT RETURN to its original state.

• Reversible: matter CAN RETURN to its original state.

*change: canvi

*to change: canviar

*to freeze: congelar

*ash: cendra