Title - Rocks and Minerals Author: Zoehfeld, Kathleen Weidner Publisher: National Geographic Print Synopsis Authors Purpose Genre 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. Inform Informational RDQ (Reading Difficulty Quotient) Accelerated Reader Lexile Find at 536 2.8 640 Amazon RDQ based on a maximum of 3000 words Levels are suggested levels based on RDQ, not official levels Sentences Total Words Different Words Max Word/Sent 29 Total # of Words 695 # of Different Words 286 Ave Word/.Sent 7 Hi Freq occurs 370 53.2% # of Hi freq words 94 32.9% % of Long Sentences 5.7 Low Freq occurs 58 8.3% # of Low freq words 30 10.5% Subjective Criteria Illustrations: Little support Sophisticated graphics supplementing text Vocabulary: Some difficult words Language: Few descriptive words Sentences: Multiple phrases Text structure: Oral/Natural Captions Inserts/Side bars Diagrams Table of Contents Index Chapters Headings Features Topics Volcanoes Rocks/Minerals Gems *Earth Science Low Frequency Words astronomer biologist diamond diamonds egyptians fossil gem gemstones geode geologists igneous jewelry limestone magma malachite metamorphic mineral minerals obsidian pumice pyramids rough ruby scientist seaweeds sediment sedimentary studies talc volcanoes