5th grade Experiment 1 The floating candle !!!

With the 5th graders we started the project : Experiments. For the first experiment we used: a tea candle, blue flowers ( for colouring the water) , water,  a plate , a jar and matches.
What happens ,  when you put a burning candle in a plate with some blue water and you cover it with a jar ? Yessss ...because of the lack of oxygen the water is raising and the candle is floating.
We did the experiment several times with more water, less water and of course it was exciting to  lit the candle with the matches.
Very interesting !!!!