This week, learn about pigments and diffusion. Visitors of all ages are invited to discover solutions to science and engineering challenges at Science Saturday. Find the hidden colors in marker ink using chromatography. Participate in our hands-on activities at the Power Plant building or grab a "to-go" pack to try at home. Activities are included in regular admission and free for Hagley members. This is a drop-in activity, feel free to join the fun anytime from 12 to 4 p.m. Use Hagley’s main entrance off Route 141 in Wilmington, Delaware. Science Saturday is presented by Young Conaway Stargatt & Taylor, LLP.