Classwork Diffusion Learning Objectives: 26 September 2022 Starter: To explain the process of diffusion. I MY BOOK •Date, Title, Starter •Underline with a ruler •Neatest handwriting •Take pride in your work! What do you know about the particles in a gas? DIFFUSION Diffusion is when gas particles spread out. Before Diffusion After Diffusion The particles have moved away from each other. They have spread out. This is diffusion.