Arrangement of particles in matter depends on its phase. They're close and organized in solids, close but irregular in liquids, and far apart and irregular in gases.

Solids, liquids and gases are three states of matter. In solids, the particles are tightly packed together. In liquids, the particles have more movement, while in gases, they are spread out. Particles in chemistry can be atoms, ions or molecules.

The three classical states of matter compared at the molecular level. In solids, the particles vibrate about fixed positions. In liquids, the particles vibrate and move over and in between one another. Gas particles are widely spaced and move with rapid, random motion.

What is meant by the Kinetic Theory of Matter? The Kinetic Theory of Matter: The arrangement and movement of particles in solids, liquids and gases are described in the kinetic theory of matter. The kinetic theory of matter is used to explain the changes in the states of matter. The changes in the states of […]

Three States of matter#solid#liquid#gas#states #kidsscience

The phase changes of matter include melting, freezing, evaporation, condensation, deposition, and sublimation.

Siyavula's open Natural Sciences Grade 8 textbook, chapter 6 on Particle model of matter covering 6.1 What is the particle model of matter?

Make root beer floats in the name of science!

American Chemical Society: Chemistry for Life.

TemperatureTemperature is thedegree of hotness or coldnessof a body.It refers to the degree of heat present in a matter.Whenwe add heat or thermal energyto a substance, the temperature increasesThekinetic energyof the particles increases and the particles vibrate fasterThe particles thusovercome the