Science is looking for answers to questions you have and questions you haven't even thought of yet. You do some form of science everyday.
Science is a way of discovering the world.
For instance, scientists once thought the world was flat and the earth was the center of the universe. Answers that scientists once thought were correct are no longer even considered. By using more powerful tools, scientists are always learning more about our world and how it works. Doing science means having new ideas of how things work based on what we already know. Sometimes, the wrong answers are more important than the right ones.