Solids have definite shapes and volumes. Liquids do not have definite shapes.
Liquids do have definite volumes.
Gases do not have definite shapes or volumes.

• Solids have definite shape and volume.
• Cannot be compressed, except porous solids.
• Particles do not flow.
• Diffuse slowly.
• High force of attraction between particles.
• Very less inter-molecular space.

• Liquids take the shape of the container and have definite volume.
• Cannot be compressed
• Particles flow
• Diffuse fast
• Less force of attraction between particles.
• More inter-molecular space.

• Gases have no definite shape and volume.
• Can be compressed easily.
• Particles flow easily.
• Diffuse very fast.
• Very less force of attraction between particles.
• Large inter-molecular forces.

Matter is any substance that has mass and occupies space
Matter is made up of small particles.
Properties of Particles

• Always in a state of random motion

Possess kinetic energy