{"product_id":"mountain-boulder-pebble-sand","title":"Mountain, Boulder, Pebble, Sand","description":"Crrr-ack!A boulder falls from a mountain and cracks into cobbles, which transform into pebbles, then granules, then sand, and silt. What began as a mountain in the clouds forms a mountain in the ocean… and 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 gorgeous introduction to the rock cycle for the youngest geologists.","brand":"Gardners","offers":[{"title":"Default Title","offer_id":57507864740213,"sku":"9781836271598","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/7193\/3106\/files\/9781836271598.jpg?v=1787043006","url":"https:\/\/backstory.london\/products\/mountain-boulder-pebble-sand","provider":"Backstory","version":"1.0","type":"link"}