They are a teaching aid for showing students how the various planets revolve and rotate. With an Earth/Moon/Sun system model you can answer all these questions by just turning the handle.. 1  Why we have day and night. 2  What a year is. 3  What a lunar month is.  Why there is summer and winter.
Currency. Romania's currency is the leu (usually appears in the plural form lei). It comes in Polymer notes. The currency has changed to RON (Romanian new lei). 1 (green) 5 (purple) 10 (Reddish Brown) 50 (Yellow) 100 )Blue) (200 and 500 lei notes are rarely used). The leu's subdivison is the ban (plural form bani), 1 leu = 100 bani), which comes in 1 (brass), 5 (cooper) 10 (steel) and 50 (brass) bani coins.
Cash (US Dollars) can be easily exchanged at any bank or. Currency Exchange Office (Casa de Schimb or Casa de Schimb Valutar) . Please note that exchange rates offered by the exchange offices at. airports and other border crossing points can be 10% to 20% less than the official rate). Taxi drivers serving the airport will probably accept US Dollars but most stores in Romania will only accept lei. US Dollars are as good and popular as the Euros; you do not need to buy Euros before you leave the USA as you will have to change the Euros into Lei anyways.