In a solid, the particles vibrate vibrate on the spot. They do not move around. In a liquid, particles are together. They are touching. They are arranged randomly, not in a regular pattern.

--> In SOLID, the particles vibrate on the spot and do not move around.

--> In LIQUID, the particles are close together, they are arranged randomly and in no regular pattern.

Explanation:

Matter is made up of tiny particles which has weight and are able to occupy space.

Matter exist in three states which include the solid, the liquid and the gaseous states. Each state has its own unique physical properties which can be use to identify it.

SOLID STATE:

In this state, the particles are in a fixed position. The intermolecular forces that exist between the molecules holds these particles together. This results to solids having a definite shape, volume and capable of vibrating around a fixed axes. Solids are also arranged in a regular pattern. These patterns are a three-dimensional array of alternating positive and negative ions known as crystals.

LIQUID STATE:

In this state, the particles are close together, they are arranged randomly and in no regular pattern. This is because the particles have enough energy to overcome the intermolecular forces that exist between them. This gives them the ability to move about each other while remaining in contact, no definite shape and takes a shape dictated by its container.

v=ir = 3x15 =45 v

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid