Why does ice cream float in root beer? The answers to this and other questions of youthful empirical concern surface in this unit of substance. Secret formulas, salt solutions, color layering in liquid, and other activities reinforce students' practical understanding of this important concept in the physical sciences.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.