Didactic model for displaying circulation of water in nature

Za vsa živa bitja je voda življenjskega pomena. V naravi voda nenehno kroži. Začetek in konec kroženja vode je praviloma v morju. V obliki vodne pare pride voda v zrak z izhlapevanjem iz raznih vodnih površin in vlažnih tal, oddajajo pa jo tudi živa bitja. V višjih zračnih plasteh se vodna para ohlaja in združuje v oblake. Tam se para spremeni v kapljice ali ledene kristale, nato pa se v obliki dežja ali snega vrne nazaj na Zemljo. Veliko vlogo pri kroženju vode ima sončna energija, saj se kar četrtina sončne energije porabi za kroženje vode. Ker je v šoli pri pouku zaželeno, da se čim več stvari demonstrira, saj lahko tako najbolj nazorno prikažemo procese in predmete, je nastalo to diplomsko delo. V njem je prikazan didaktični model za prikaz kroženja vode na Zemlji ter njegova umestitev v pouk, zasnovan na učnih načrtih za naravoslovje v 6. in 7. razredu ter biologije v 8. razredu osnovne šole. Prav tako so v diplomskem delu prikazane priprave in učni listi za učno uro na temo kroženje vode za vse tri razrede.Water is vitally important for all the living creatures. In nature the water is in constant circulation. The beginning and the end of this circulation is usually within the sea. Through evaporation the water in the vapor form first enters into the air from various water areas and humid grounds, and it is also submitted from living creatures. In higher layers of air the vapor cools down and conducts into clouds. There the vapor changes into water drops or icy crystals and then returns back to the ground in a shape of rain or snow. The energy from the sun has an important role within the water circulation because approximately one quarter of sun energy is used for this kind of circulation. It is desirable to demonstrate as many processes as possible during lessons, because this is the best way to explain the processes and subjects. This is the reason this diploma thesis has been made. In the thesis I have present a didactic model for demonstration water circulation on Earth and its fitting into lessons based on curriculums for Science in 6th and 7th grade as well as for Biology in 8th grade of primary school. There are also lesson plans for lessons on water circulation in all the three grades and working papers in this thesis as well