Fun drink for kids or adults. Add food coloring to ice cube tray and water and freeze. For kids: Layer colored ice and add ginger ale. For Adults: Layer ice cubes and add 1 ounce vodka, 4 or so ounces of soda water and 4 dashes of grapefruit bitters
Science or Color Week (States of Matter / Color Mixing) Make primary colored ice cubes. Put two different colored ice cubes in a class and see what color they will make when they melt. Let the kids make predictions!