Download or read book How Big? How Heavy? How Dense? written by Jennifer Boothroyd and published by Lerner Publications ™. This book was released on 2017-08-01 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: A light beach ball floats on the water. A heavy rock sinks in the mud. Matter is all around us. But what makes a beach ball different from a rock? And what properties do we use to compare matter? Read this book to find out!