In emerging markets, many health and economic problems are related to access to clean water and sanitation infrastructure. This causes issues related to hygiene, pollution, agriculture, diseases, food and education. ISEF competitor Arya Tschand, 17, from Marlboro, New Jersey, has seen these problems first hand. " I developed the idea for my project on a trip to India visiting family," he says. "I saw the land was affected by water shortages and wastage, which affects people worldwide."

"I learned the hard way that low pricing is not the way to get quality business," says Caren, owner of 2 Dogs Media, based in Marlboro, New Jersey. Her low prices tended to attract clients who were difficult and disrespectful. When she started charging based on what each job required, she got to spend more time with her family and got clients who appreciated her more.