10B Candle Lab
Procedure:
1) Put on your safety goggles and apron.
2) Fill the aluminum pan with approximately 2 cm of water, covering the bottom of the pan.
3) Carefully place the candle on the penny in the canter of the pan in the water.
4) Light the candle
5) Let the candle burn for 30 seconds
6) Invert the test tube over the lit candle so the opening of the test tube over the water but not touching the pan for 15 seconds, then make it touch the pan.
7) Record your observation
8) Discuss possible explanations
9) Dry the test tube, return materials, and leave your station clean.
Conclusions:
1) Oxygen is needed for the candle to burn.
2) The water rose up in the test tube because the area of high pressure surrounding the test tube pushes the water up to mix with the low pressure, which is in the test tube because the flame took the oxygen away creating a low pressure system.
3) It got hotter because the warm air from the candle rose.
4) The air pressure
1) Put on your safety goggles and apron.
2) Fill the aluminum pan with approximately 2 cm of water, covering the bottom of the pan.
3) Carefully place the candle on the penny in the canter of the pan in the water.
4) Light the candle
5) Let the candle burn for 30 seconds
6) Invert the test tube over the lit candle so the opening of the test tube over the water but not touching the pan for 15 seconds, then make it touch the pan.
7) Record your observation
8) Discuss possible explanations
9) Dry the test tube, return materials, and leave your station clean.
Conclusions:
1) Oxygen is needed for the candle to burn.
2) The water rose up in the test tube because the area of high pressure surrounding the test tube pushes the water up to mix with the low pressure, which is in the test tube because the flame took the oxygen away creating a low pressure system.
3) It got hotter because the warm air from the candle rose.
4) The air pressure