Detailed Summary
This section explores the concept that all matter is composed of tiny particles, which are in constant motion. This intrinsic movement is referred to as kinetic energy. As temperature increases, the kinetic energy of the particles also increases, causing them to move more vigorously. This section illustrates the concept through practical activities, such as observing how the scent from an incense stick disperses in the air or how color from a drop of ink spreads in water. The section concludes with a discussion on diffusion, explaining how the movement of particles leads to their intermixing, which is faster at higher temperatures.