SECONDS/IMPERFECT Layers of the atmosphere puzzle

These collection of products have some cosmetic flaws. They are perfectly functional but not up to our standards.  This could be due to a wood knot, too shallow/too deep divots, hairs inside the engraving that couldn't be sanded, engraving not centered, letters off focus, etc. ____________________________________________________________________   Up, up and up we go! What do we find? Earth's atmosphere is a multi-layered cake, each with its own flavors/properties. Where can a commercial aircraft fly? Can it fly closer to the Aurora Borealis? This beautiful layered puzzle takes it up step by step. Each layer has little manipulative wooden inserts to be placed (such as a weather balloon, satellite, etc.) in their appropriate layers. This work is a great way for children to expand their geographical knowledge, while continuing to build and refine their fine motor skills, spatial understanding, concentration, and sense of order.  Children are sure to love the sensorial experience of moving