States of matter class 4 (Points to remember)
Matter: Anything that has mass and occupies space is called matter.
Condensation is the process by which a gas changes into a liquid on cooling.
Freezing is the process by which a liquid changes into a solid on cooling.
Melting is the process by which a solid changes into liquid on heating.
Solute is a substance that is used in smaller quantity in the solution.
Solvent is a substance that is used in larger quantity in the solution.
Solution is a mixture of solute and solvent.
Sublimation is the process by which a solid directly changes into a gas.
Volume is the amount of space occupied by an object.
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