Children learn all about the Earth and its environment with comprehensive, hands-on lessons that span the curriculum! From wood samples and rock specimens to recycling bins and sorting cards, our theme box is packed with materials that help children explore the natural world and learn how to protect it. Plus, you get a guide with tons of involving activities that cover 10 curriculum areas from math to dramatic play. Includes: Activity guide, 10 photo cards, pine cone, bark, twig, and cross-section samples, 2 miniature pine trees, 2 miniature oak trees, 4 Build-A-Tree stamps, 4 recycling bins with labels, recycling sign, 16 cycling bin cards, flower press, magnifier, 6 rock specimens, ink pad, and 5 books: If a Tree Could Talk, Our Big Home: An Earth Poem, This Is Our Earth, Water, Why Should I Recycle?