14.System to detect Computer Vision Syndrome, Blind navigation system with terrain mapper
   Vignesh R, Manoj Kumar, Raghav Simhan
   Class 11, Tamil Nadu
Computer Vision Syndrome: Prolonged exposure of eyes to computers and television daily has given rise to many eye related problems. The system these kids developed detects Computer Vision Syndrome i.e detecting the number of eye blinks per minute. It gives an alert to consult a doctor, if the number of blinks per minute gets reduced below a medically accepted limit.
Blind navigation system with terrain mapper:  A navigation system (further work is needed) where shoes can map the terrain using sensors and GPS. Specially designed gloves worn by the blind shares this information thermally.
 

15.Foldable & Portable multipurpose device(chair, hammock, table, stairs etc)
Pankit B Gami and Ekta Patel
Class 12, Gujarat
In a cramped up world of today whose population is growing denser by the day, space is the major constraint. Here a device which is portable, light weight to carry and multipurpose is developed by Pankit and Ekta.

16.Use of helmet as an ignition for two wheelers
   SM Arthi, S Vinotha and Lailaa Banu
   Class 11, Tamil Nadu
How about a vehicle starts only after the helmet is worn, this can be made the single solution to multiple problems. Arthi, Vinotha and Lailaa wondered if the helmet is so useful and life saving, why it cannot be used for ignition to start two wheelers.