{"product_id":"mountain-boulder-pebble-sand","title":"Mountain, Boulder, Pebble, Sand","description":"A poetic and easy to understand introduction to geology and the rock cycle. A boulder falls from a mountain and cracks into cobbles, which transforms into pebbles, then granules, then sand, and silt, until the rock that began as a mountain in the clouds is now part of a mountain the ocean where the cycle begins again.Extra nonfiction content at the back of the book gives readers a more in-depth look at how scientists classify different rock sizes.A gorgeously illustrated, perfect introduction to earth science for our youngest geologists.","brand":"Unity Books","offers":[{"title":"Mountain, Boulder, Pebble, Sand","offer_id":46469165973701,"sku":null,"price":28.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/6679\/3413\/files\/978-1-83627-159-8.jpg?v=1782778749","url":"https:\/\/unitybooks.myshopify.com\/products\/mountain-boulder-pebble-sand","provider":"Unity Books","version":"1.0","type":"link"}