Download or read book Is it natural or human-made? written by Helen Mason and published by Triangle Interactive, Inc. . This book was released on 2018-01-18 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Read Along or Enhanced eBook: This engaging title helps young scientists identify, compare, and contrast natural and human-made materials. Child-centered text and vibrant images combine to clearly explain the properties and uses of these materials.