National Geographic Amazing Worms Chemistry Kit
Make gooey, glowing "worms" at home! Includes the ingredients you need for 5 experiments, including glow-in-the-dark and color-changing "worms". Includes green sodium alginate, color-changing sodium alginate, calcium chloride, zinc sulfide, 2 experiment cups, 1 measuring spoon and experiment guide. For ages 8 and up. Adult supervision is required.