How do elephants' ears help keep them cool? Why do ice cubes melt in your mouth? How do hats help keep us warm on cold days? Take a closer look at the science we use every day! From the moment we get... This description may be from another edition of this product.
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.