Download or read book Sifting Through Science written by Laura Lowell and published by Great Explorations. This book was released on 2003 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Young children enthusiastically investigate the properties of objects in this introduction to physical science. In three open-ended activities, children explore materials that sink or float, magnetic and non-magnetic objects, and a sand and bean mixture using tools that can sift and separate. In the final activity, children must apply what they've learned to a garbage dump recycling challenge.