Website
Frostburg State University

University of Frostburg: How Nonpolar Molecules Dissolve

For Students 9th - 10th
This site from the University of Frostburg provides an explanation of the process by which nonpolar molecules dissolve in water.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Spotting Chromatography

For Teachers 9th - 10th
A lab activity that introduces chromatography using markers, plus water and acetone as the solvents. Students will take measurements to compare the mobile and stationary phases of the inks, and find the polarity of the inks and solvents....