Make a Mentos-and ... and push the soda out in a big woosh! Put on your goggles. Since you are using isopropyl alcohol, be sure that a teacher, parent, or other adult is working with you. Be sure to ...

Fill the third tube to the mark with sand. Use index card to hold the contents of the tube in place. Open one bottle of diet soda and set it on a flat surface. Put the open end of your tube of Mentos ...