This evasive collection of projects and experiments covers an array of subjects, including the oceans, weather and earthquakes; plants, soil and insects; and transportation. It also explores the day-to-day lives of past civilization. ,
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.