By Dan Green. How do crystals grow inside rocks? How deep a hole can you drill into the earth? How many stone blocks are there in the Great Pyramid? Learn the answer to these questions and more with this colorfully illustrated book published by Scholastic. Includes in-depth information about rock formation and change; galleries of rocks, minerals, and gems to identify and collect; and cool graphics to make science simple. 2013. Soft cover. 112 pages. For readers ages 10 and up.