This document provides an overview of the key concepts in science: 1) Science is the process of understanding the natural world through experiments and developing theories based on evidence. Scientists conduct research to solve problems and create new technologies. 2) There are many branches of science, each studying different aspects of nature. The scientific method involves making observations, formulating hypotheses, conducting experiments, analyzing results, and developing theories. 3) Theories are explanations that are continually tested and can be modified, while scientific laws are fundamental principles that reliably describe natural phenomena. The limits of science are questions that cannot be empirically tested, involving ethics, morality, or other non-empirical domains.