## Simple Diffusion Paper Challenge: Color Spread Experiment **TL;DR:** Explore how color spreads through paper by observing simple diffusion using water and food coloring. - Place a drop of food coloring on a dry paper towel and add a drop of water next to it. - Watch how the color moves and spreads over time without any external force. - Compare how different types of paper affect the speed and pattern of diffusion. *Pro Tip:* Use a timer and take photos at regular intervals to track the diffusion progress accurately. What patterns do you notice when changing the type of paper or amount of water? #simplediffusion #sciencechallenge #paperscience #colorexperiment #learningthroughplay #stemforkids