The menorah is a candelabra which is used to hold the candles through the duration of Chanukah. The menorah has eight places for candles, and another candle place, separated from the others. The separated candle place, is for the Shamash, or service candle. The Shamash lights the eight other candles.
During the night of each passing Chanukah day, we light another candle, one more than we did the previous night. We light the candles from right to left.
Each candle represents one of the eight days that the oil burned in the temple a long time ago.
It is important that there are enough candles to last you throughout Chanukah. You will need a total of 44 candles.