This fascinating science project requires baking soda and vinegar (not included). Detailed instructions explaining the step-by-step scientific process are included.This fascinating science project requires baking soda and vinegar (not included). Detailed instructions explaining the step-by-step scientific process are included.Made using safe and high quality materials this product is designed to last.Give the gift of science with toys and gadgets that foster curiosity and encourage scientific learning.Recommended for ages 5 and up.Challenge your childs imagination with 4M toys and kits.