Hello. I am Lee Do-eun, your science teacher at Kookgeu. “My dream is to become a Ph.D. in Engineering,” “My dream is to become a biotechnologist,” “My dream is to become a doctor,” “My dream is to become a programmer.” These are dreams that many of you share, aren't they? To prepare for such a future, it is necessary to learn about science in advance. However, science is a subject that 6th graders often find very difficult once they enter middle school. As you move from the first year through the second and third years, it gets progressively harder, leading you to think, “Ah! Science is a difficult and tough subject. Ah! Science isn't fun.” But!! Let's study together to understand the principles of middle school science and explore how this scientific knowledge is applied to everyday life by discovering hidden phenomena. Then, you will be able to approach middle school science easily and enjoyably.