Google is announcing $23 million in grants to spur innovation among charities and increase education for girls and minority students in science and technology, the Associated Press reports. Seven nonprofits will win the first Google Global Impact Awards on Tuesday. Charity: Water receives $5 million to use water-monitoring technology at 4,000 wells across Africa. Donorschoose.org receives $5 million to create 500 new Advanced Placement science and math classes with the College Board for underrepresented students…