Is this it? Go on, put the lighted candle into the water, and then put the glass on the candle. After a while, the candle will go out and the water will rise. Our teacher got a candle today. She put it on a shelf, in a basin, with coins next to it. Then she put a glass jar full of air on the candle. She put some water in the basin. Our teacher lit the candle. The candle stayed in the air for a while and bubbles appeared in the water. Then the candle went out. Because the bottle was empty, all the air was used up, so the water poured in and filled the space of the bottle. Look at all the water that rushed into the jar and filled the space once occupied by air. I'm happy to help you.