Young Scientist Series - Set 6: Flight (Kit 16) - Heart and Lungs (Kit 17) - Digestive System (Kit 18) Educational and fun for kids Great hands on learning kit Encourages creative learning Kit has everything you need Take a Journey into the Human Body 3 complete kits in one box Mulitple award-winning science kits that make science fun, educational, and hands-on All kits are put on the market after it has passed the ulitmate test-approval by multiple teams of Young Scientists Make planes, parachutes, jets, windmills, and spinners before flying into the fascinating world of the heart and lungs.