Debbie Wasserman Schultz to Resign D.N.C. Post. Representative Debbie Wasserman Schultz of Florida, chairman of the Democratic National Committee, at a rally for Hillary Clinton and her running mate, Senator Tim Kaine, in Miami on Saturday. Credit Scott McIntyre for The New York Times. Follow along with our coverage of the Democratic National Covention.
States of Matter: Facts. Matter is all around us. Matter is the air you are breathing. Matter is the computer you are reading from now. Matter is the stuff you touch and see. And it is more. Matter is defined as anything that has mass and takes up space.
Matter is a word that is sometimes used in varying ways in everyday life, whereas mass is a well-defined concept and quantity at least in physics. They are not the same thing, though they are related. Ordinary matter is made of tiny particles called atoms. The atoms have spaces between them and they move or vibrate all the time. The particles move faster and move further apart when heated, and the reverse when cooled.