Final answer:
Chemistry is the study of matter and its properties, which helps us understand the world around us.
Step-by-step explanation:
Chemistry is the study of matter - what it consists of, what its properties are, and how it changes. Matter is anything that has mass and takes up space - that is, anything that is physically real. Some things are easily identified as matter, like the screen on which you are reading this book. Other things, like air, are not so obvious. Chemistry is a science that has its fingers in just about everything, as it helps us understand the world around us.