Define diffusion. Diffusion is the ____ of particles from a region of ____ concentration to a region of ____ concentration down the concentration gradient until ____ is reached. Explain why the smell of food cooking in the kitchen can be detected in the living room. Gradient: The kitchen has a ____ ____ of scent particles than the living room. Movement + Process: There is ____ of scent particles from the ____ to the ____ via the process ____ Effect: This allows people in the living room to smell food. Observation: red food colouring spreads out faster in hot water than in cold water. Explanation: the red food dye particles ____ ____ from the hot water and move ____, causing the rate of diffusion to ____.

[4] KPT - diffusion

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