ROCKLAND — Rockland Public Library is getting colorful for the month of April. Join Miss Katie and Ms. Jessie in two rainbow science projects.

Learn about density while you build a “rainbow in a jar” during the Library’s STEM Workshop: Rainbow Science, Wednesday, April 17, at 3:45 p.m., in the Community Room.

Create your own spectroscope to bring home.

This program is free and open to the public; it is Library policy that children 10 and under be accompanied by an adult.