Three States of Matter

1) Why a Solid Object Makes Noise on the Impact of Another Solid Object?

• Sound waves are produced as a result of vibrations in any object.
• As the solid object collides with another solid object, the atoms start vibrating, which produces sound.

2) Why Does the Air Form Bubbles Inside the Water?

Air is soluble in water. But when the amount of gas dissolved in the water exceeds its limit, the air molecules start aggregating, forming air bubbles.