How do we know Earth is round? What are the layers inside Earth? How do continents move? The exciting experiments in this book will unlock the secrets of our planet. Some will even give readers ideas for their own science fair. All readers need are some simple materials, most of which can be found around the home, school, or neighborhood.
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.