National Geographic Primary Readers is a high-interest series of beginning reading books that have been developed in consultation with education experts.The books pair magnificent National Geographic photographs with lively text by skilled children’s book authors across four reading levels. From dazzling gemstones to sparkling crystals to molten lava, this brilliantly illustrated book introduces children to the exciting world of rocks and minerals, including both the building blocks and the bling.This level 3 reader, written in easy-to-grasp text, will help cultivate the geologists of tomorrow! Level 3: Becoming independentBest suited to kids who are ready for complex sentences and more challenging vocabulary, but still draw on occasional support from adults.They are ideal for readers of Purple and Gold books.