viernes, 14 de enero de 2011

the stream


A stream is a natural flow of water located in a mountainous area with steep slopes, irregular flow and can have great capacity for erosion. Is a term widely used in both hydrography and geomorphology as in the broader field of physical geography. It is often used synonymously with ravine although the latter term seems to have a closer relationship with the bed of a torrent with the same self-stream. It is also used very often, especially in the eastern part of the Iberian Peninsula, the term of Arab origin, promenade.

el ciclo del agua

Los Glaciares


A glacier is a thick mass of ice that originates in the Earth's surface accumulation, compaction and recrystallization of snow, showing evidence of flow in the past or today. Their existence is possible when the annual snowfall exceeds evaporation in summer, so the majority are in areas near the poles, although there are in other mountainous areas. The process of glacier growth and establishment is called glaciation. It consists of three parts: header or circus, tongue and valley or area of ablation.

The weather in Europe

Observa el mapa de isobaras y contesta las preguntas.



1- ¿Cuántos anticiclones observas? ¿Donde se encuentra el anticiclón mas potente? ¿Cuál es su presión?

2- ¿Cuantas borrascas observas? ¿Dónde se encuentra la más profunda? ¿Cuál es su presión?

jueves, 13 de enero de 2011

GLOBAL WARMING

Este sketch te puede ayudar a comprender mejor la diferencia entre tiempo y clima:





Visto en: Amazings. es