- CONNECT: The perfume particles are spreading out from the bottle into the surrounding air. Initially concentrated near the spray nozzle, they move randomly and collide with air molecules, gradually dispersing to fill the available space.
- ACTIVATE 1: The purple potassium permanganate crystals dissolve in water. The purple color spreads slowly from the bottom of the beaker upwards until the entire solution becomes evenly colored. This shows particles moving from an area of high concentration (where the crystals were placed) to areas of lower concentration (the rest of the water).
- ACTIVATE 2: Left diagram: Particles are clustered together on one side, indicating high concentration in that region. Right diagram: Particles are spread out more evenly throughout the container, showing they have moved from high to low concentration areas until equilibrium is reached.
- Define diffusion: Diffusion is the net movement of particles from a region of higher concentration to a region of lower concentration due to their random motion, until the particles are evenly distributed.
Parent Tip: Review the logic above to help your child master the concept of diffusion worksheet.
