"It's monsoon season in Bangladesh, and that means Iqbal's mother must cook indoors over an open flame, even though the smoke is making her and the family sick. When Iqbal learns about the district science fair, with the theme of sustainability, he is determined to win first prize. With the cash reward, he can buy a pipe stove that draws smoke out of the house. Then Iqbal is struck with an ingenious idea! For his science fair project, he will build...