Current issues, ethics, and values are part of science and the teaching of science. Children look for fairness.
Science has answers and more questions.
The questions of science are often the questions of society. Hands-on, minds on science cannot be taught without asking hard questions. Frequently a science program that encourages students to think also encourages questions. The questions are not for the teacher, however, to answer. Students can apply similar methods to collect information and ferret out sound data.