Physical and Chemical Changes Flashcards
Definition of Physical Change
A change in which a substance undergoes a change in its physical properties is called a physical change.
______ are known as physical properties.
Shape, Size, Colour and States of matter.
Definition of Chemical Change
A change in which one or more new substances are formed is called a chemical change.
Chemical change is also known as ________
Chemical reaction
Emission or release of heat is known as ______
Exothermic
Absorbtion of heat is known as _______
Endothermic
Temporary Change is known as _______
Physical Change
Permanent Change is known as ________
Chemical Change
No new substance are formed in ________ change
Physical Change
Freezing, Melting, Boiling, Condensing, cutting, Grinding, Bending, Blending and Dissolving are an example of _________
Physical Change
Combustion, rotting, rusting, oxidising, respiration, cooking, digesting and decomposition are an example of ___________
Chemical Change
Definition of Evaporation
Evaporation is a process in which Substance changes from a liquid state to a gaseous state at any temperature.
Definition of Boiling
Boiling is a process in which liquid changes to vapour state at its boiling point.
Definition of Condensation
Condensation is a process in which vapour changes to liquid state.
Definition of Freezing
Freezing is a process where liquid gets converted to Solid.
