Adolescentes se sentindo ocupados. Quatro adolescentes se sentindo ocupados enquanto preparavam um importante projeto de ecologia juntos - Banco de fotos e imagens

Students studying. Three diligent students studying natural sources of energy while preparing project

Diligent students. Three cheerful diligent students using laptop and phone while preparing project together

Models of windmills. Three smart students looking at models of windmills while studying ecology

Studying in class. Dark-skinned friend wearing glasses sitting near girl while studying in class together

Feeling joyful. Cheerful teenagers feeling joyful while studying ecology and watching videos together

Brainstorming about ecology. Four smart modern students feeling involved in brainstorming about ecology

Doing homework together. Three diligent and motivated students talking while doing homework together

Enjoying team work. Happy good-looking children and teacher enjoying their team work all together

Hardships of learning. Three focused pupils poring over their chinese books sitting at the desk in the classroom.

New ideas. Cheerful teenage students sitting in the classroom and discussing alternative energy sources while one of the girl pointing at wind turbines

New teacher. Excited nice boy in glasses asking other children while standing in a class

Perfect team spirit. Joyful teenage students joking and laughing while discussing an ecology project related to the alternative sources of energy

It is ok. Positive delighted international boy keeping smile on his face while studying with pleasure