This fact filled 70 piece jigsaw puzzle made by Larsen is a fun way to learn all about volcanoes. For slightly older children, this puzzle is a part of a series of educational puzzles that are also fun projects to complete. ' Volcanoes' explains through a detailed illustration how volcanoes are formed, why they exist & why they erupt. From the beginnings of hot magma trapped deep inside the Earth to the escape of glowing lava & ash through the mouth of a volcano, right through the impact an eruption has on the human & animal inhabitants living in close proximity to the volcano.. Beautiful & informative, this puzzle is a great way for parents to teach their children how one of nature's great forces manifests & how it affects all life on Earth. This is an educational tray puzzle. The puzzle is completed in the tray, which also stores the pieces after use rather than in a box as with traditional jigsaws. Dimensions: 36.5 x 28.5 cm Number of Pieces: 70