Science is the systematic study of nature, based on observations. If a phenomenon cannot be observed by man's senses, either directly or with the aid of instruments, it cannot be dealt with scientifically. For example, all speculations concerning ultimate origins are excluded from the lawful domain of science, since the necessary observations cannot be performed. Closely akin to science is technology, the practical application of scientifically acquired knowledge. Science and technology are often intertwined to the extent that it is impossible to teach the one without touching upon the other.
True science, diligently studied and carefully taught, will dispel a multitude of myths. Unfortunately, it has become fashionable in today's media to erase the line of demarcation between true science and science fiction. The Christian teacher of science can render a valuable service to his students by reestablishing that line and stressing its significance.