5 teaspoons each strawberry, orange, lemon, lime, berry blue and grape Jell-O powder
6 teaspoons superfine sugar
3 3/4 cups boiling water
Place each Jell-O flavor in a separate small bowl. Whisk 1 teaspoon superfine sugar into each bowl.
Starting with the strawberry and working with one flavor at a time, pour 1/2 cup plus 2 tablespoons boiling water into each bowl. Stir gently until the gelatin and sugar dissolve.
Evenly divide the strawberry gelatin among ten 3-ounce ice pop molds using a small liquid measuring cup (about 1 tablespoon per mold). Freeze until just set, about 15 minutes. Repeat with the remaining flavors in this order: orange, lemon, lime, berry blue and grape.
Place the lid on the ice pop mold and insert wooden sticks. Freeze until completely solid, about 8 hours or overnight.
Remove the pops from the freezer. Let stand at room temperature until they slide out easily, about 10 minutes.