Worksheet illustrating the process of diffusion, showing how molecules move from high to low concentration until evenly distributed.

A black and white educational worksheet titled "Diffusion" showing a diagram of copper sulfate dissolving in water, with a hand using a dropper to add the substance to a beaker. The worksheet includes fill-in-the-blank sentences and a word box with terms like "low," "high," "evenly," "simple," "facilitated," "equal," and "energy."