ELMER"S PRODUCTS-Scientific Explorer: Fizzy Foam Science Kit. This exceptional series of home science kits is based on the nationally recognized Great Explorations in Math and Science (GEMS) program pioneered at UC Berkley"s Lawrence Hall of Science. Acclaimed for excellence as a teaching resource. Make colorful; erupting foaming lava. Feed a living creature & watch it make foam. This package contains 3oz/84g citric acid; 2oz/56g baking soda; 2oz/59g vegetable oil; 0.25oz/7g yeast; twelve color tablets; magnifier; measuring spoon; two stir sticks; two plastic cups; plastic straw; three plastic bags; and a science guide. Recommended for children ages 4 and up. WARNING: CHOKING HAZARD-small parts. Not for children under 3 years. This kit contains chemicals that may be harmful if misused. Read cautions on individual containers carefully. Not to be used by children except under adult supervision. Made in USA.