This document discusses ethics with respect to science and research. It defines ethics and explains that ethics deals with judgements about human conduct and what is considered right or wrong behavior. The document then discusses research ethics and explains that what is considered acceptable or unacceptable ways of conducting research can vary in different contexts. Finally, it outlines several key principles of ethics in research, including duty to society, beneficence, informed consent, integrity, and protecting privacy and confidentiality of research participants.