Ключевые слова: 12 years old, 30s, african, alternative energy, black, boy, caribbean, caucasian, class, classroom, collaborating, education, electricity, environmental, female, girl, green, group, happy, helping, high school, hispanic, horizontal, indian, learning, male, mixed race, model, multicultural, people, person, power, pupil, school, science, secondary school, smiling, social issues, south american, student, studying, sustainable, teacher, teaching, thirties, together, tutor, wind turbine, woman, women,