Complete volcano activity kit with everything included for hands-on learning and fun for hands-on learning and fun Build, paint and erupt your own model volcano Includes real lava rock specimens for children to discover and identify Tools and clay block included for a fun excavation digging kit activity Large poster and full instruction guide for easy step-by-step learning The World of Science Volcano Multi Activity Kit is a fun and educational way for children to explore how volcanoes work. The kit includes everything needed to build and erupt a realistic volcano model, including a mould, plaster, baking soda and citric acid.