What happens to particles of a substance as it is heated?

Particles move faster when heated. When cold, they move slower.

The bonds in between the particles become weakly bonded.

it expands and it becomes bigger

As temperature increases, particle motion increases proportionally.

When a substance is heated, its particles start moving fast and their rate of collision also increases. The process leads to the substance expanding.

As a substance is heated, the particles that comprise the substance vibrate more and more violently and the energy that this motion represents increases.

the substance expands when heated because the particles that make up the substance is trying to get out and escape the heat.

The particles, those atoms/molecules of matter in a sample, will increase in kinetic energy as the sample is heated. Their kinetic energy will appear as vibrational energy, and the amount of vibrational energy of the atoms or molecules of a substance is directly proportional to the temperature of that substance.

When a substance is heated, the energy goes to the particles and their bonding and causes them to vibrate more vigorously.

what happen to the particles of solid that is heated until it melts

An increase in the temperature of a substance is an increase in the average energy of the particles. They move faster.

No, generally the spaces between the, do.

when particles in a piece of rock is heated up it stays the same size.

The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.

As the temperature of a substance increases, its molecules move faster and therefore take up more space. This generally causes a substance to increase in volume when heated.