It comes from the air. Putting the jar over the candle keeps oxygen from outside the ... or other adult works with you. Wear goggles when doing this experiment as well as when cleaning up. Tealight ...

Ideally, the field of view doesn't show any edges of the glass. Do not place the black fabric anywhere above the candle. The fabric can melt or catch fire. Fire is dangerous. Do not run this ...

Researchers from University College Cork and Galway University examined air quality ... during the experiment, as noted by Gazeta.ru. Sulfur dioxide released from burning scented candles can ...

Presenter 2: The bigger the measuring beaker, the more air and the longer the candle burnt. Presenter 1: So, we have seen an experiment looking at how long a candle burns under different beakers.

Although it sounds like science fiction, apps using sound waves or other advanced technologies enable these small experiments ...