This rock-themed addition to the best-selling Backpack Explorer series gets budding geologists outside to learn about rocks, minerals, land. Learn basic geology, with facts about landforms and igneous, sedimentary, and metamorphic rocks. Create a rock collection, sorted by color, shape, texture, and size. Search for rocks and minerals and learn how to classify them. Backpack Explorer: Rock Hunt  is packed with fun features, including: 50 stickers 12 interactive field guides 6 outdoor games 3 sensory scavenger hunts A real magnifying glass A pull-out journal to record notes It's the perfect guide for nature-curious kids ages 4 to 8 who love everything about rocks, from fossils to gemstones!