https://padlet.com/houstonisd12340/v00g6032ekry en-us 2017-01-11 14:59:25 UTC 2025-12-29 15:50:25 UTC hello@padlet.com houstonisd12340 https://padlet.com/houstonisd12340/v00g6032ekry/wish/146527408 Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer"]]> 2017-01-11 15:00:06 UTC https://padlet.com/houstonisd12340/v00g6032ekry/wish/146527408 houstonisd12340 https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530124 a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.]]> 2017-01-11 15:07:19 UTC https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530124 houstonisd12340 https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530280 land consisting of marshes or swamps; saturated land]]> 2017-01-11 15:07:46 UTC https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530280 houstonisd12340 https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530492 water that collects on the surface of the ground.]]> 2017-01-11 15:08:25 UTC https://padlet.com/houstonisd12340/v00g6032ekry/wish/146530492