Science is the systematic study of the natural world through observation and experimentation. It helps us understand how things work, from the smallest particles like atoms to vast systems like ecosystems. Scientists use the scientific method, which involves asking questions, forming hypotheses, conducting experiments, and analyzing results. This process allows us to gather evidence and draw conclusions about the universe around us. Through science, we have made incredible discoveries that improve our lives, such as vaccines that protect us from diseases and renewable energy sources that help combat climate change. By continually exploring and questioning, science drives innovation and enhances our understanding of everything from biology to physics.