Easy, Interactive, Hands-on Lab that will help students understand how salinity affects density! Lab sheet is differentiated to be available for all learners RAINBOW STRAW LAB DIRECTIONS o Materials: Food Coloring (At least red, yellow, and blue to mix colors), 5 cups or beakers of water, clear, plastic straws (you can re-use so you only need a handful). o Procedure: Label the 5 cups 0, 2, 4, 6, and 8 (for the number of tablespoons of salt that are in each). Take the 5 cups and fill them up