What happens to particles in a substance when they are heated or cooled?
The bonds in between the particles become weakly bonded.
No matter whether there is limited energy, particles are still moving. When they are heated, they move very fast and rapidly. When they are cooled, they tend to slow down and move slower. That is because heat is energy adn when something is cooled, they lose their heat, basically, they lose their energy and particles move slow.
volume: when you heat it, the particles will spread out, making the substance expand Density: same as above plus the particles are more spread out when heated, making the substance less dense, and when cooled the substance is more dense because the particles are closer together viscosity: same as above
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 metal or any other solid, liquid, or gas is heated they expand. This happens because the molecules that make these substances start to move or "shake" more than they already do. If they are heated to a certain point (depending on the substance) they will shake enough to break free. if you had a solid it will melt into a liquid, and a liquid into a gas.