Without science I wouldn't be able to write this answer. Science has affected our lives greatly in the 20th and 21st centuries as it has in most. Through science we have been able to grow more crops to help feed the world. Without science we wouldn't have laptop computers, cell phones, or telephones to name just a few of the things I use every day that have come about through science. It also helps you learn more about the society around us and more about our world that we live in.