Robert Gardner 
Science Fair Projects About Rocks and Minerals [PDF ebook] 

The hands-on experiments in this book, illustrated in color, will unlock the secrets of rocks and minerals, including how sedimentary rock is different from metamorphic rock, what is in soil, and what minerals can be found at home. Some will even give readers ideas for their own science fair project. All they need are some simple materials, most of which can be found around the home, school, or neighborhood.