Why Do Candles Change In Water

The dependent variable in the experiment was the temperature and energy absorbed by the water.

Heat the bottom of the candle and secure it to a cardboard square on your lab counter. Light the candle and allow it to burn for several minutes. Note any changes. Briefly describe the burning candle.

The room temperature had little or no effect on the water potential. The mist increased the water potential of the air causing less transpiration to occur from the leaves.

Try to repeat the experiment to compare the weight of the candle instead of its height. Do you think there will be any difference in your findings?

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

To conduct this experiment, a candle was placed upright in a pan of water, was lit, and the flame was allowed to fully develop. Then a graduated cylinder was placed upside down to represent an airtight chamber, and the water rose. The point where it rose to was

Every 5 minutes, however, the beaker was removed from the ice bath, and its interior was scratched using a glass stir rod. 4. In between scratching the beaker’s interior, part III of this procedure was started. Part III 1.

The air pressure fell below the vapor pressure, and the water boiled. 10) Use your observations to compare the atmospheric pressure outside the beaker to the air pressure inside the beaker before lighting the candle. The pressure is equal before lighting the candle because the beaker took the air from outside the beaker, and nothing has been done to change the

Using a piece of aluminum foil with a slit in it, place the foil between the base of the flame and the liquid in the bowl. Note the behavior of the flame. 7. Invert a beaker over the lit flame. Make observations

Trial 1: A dish was filled with approximately 2 cm water and a candle mounted on clay was place in it. The candle was lit and a jar was placed over top of the candle so that it was resting on the dish. When the flame went out the water level inside the jar was measured. This process was repeated three times.

The dependent variable for this experiment is the height of the water in the bottle. The independent variable is the volume of water added to the bottle. Some controls include but are not limited to, what bottle is used, type of liquid poured into bottle, who measures the water, how clean the bottle is during the experiment. Figure one shows what the bottle used in the experiment looks like. Procedure: 1 mL of water was squirted into the bottle using a pipet.

In this project we examined three explanations that talk about (a) candle(s) in a jar and their investigation reasoning to why the labs they did were concluding in such a way. The first explanation resulted that the candle inside the jar took up all the oxygen molecules inside the flask which then lowers the pressure inside and the higher pressure outside the flask is what causes the water to rise up. The second explanation resulted in that the air pressure increases inside the jar because of the heat from the candle, which causes air to come out of the jar and once the candle cools down the pressure decreases and the pressure outside the jar increases which results in pushing the air in and making the water rise up. The third explanation resulted in oxygen inside the flask becoming carbon dioxide which then dissolves in water causing the air pressure to decrease under the glass and the higher pressure outside the flask pushed the water up the flask. I believe that explanation number three is right because the flame causes carbon dioxide to be created and that

In the second experiment, The condensation shows that there was water present as it was left inside the beaker along with soot, Both of these things show incomplete combustion. In the Third experiment, It showed lack of oxygen which the candle needed in order to burn this also showing incomplete combustion. In the forth experiment, The color change in the BTB indicates the effects of Carbon Dioxide. In the fifth experiment, the candle burns fuel because it creates the candle to gain heat and melt. In the sixth experiment, it showed the presence of carbon dioxide due to the color change.

The topic is Balloon Race (Reaction vs. Temperature). In this experiment, the scientists will be analyzing on whether temperature affects the rate of a gas producing reaction. The independent variable would be the temperature of water in degrees Fahrenheit, while the dependent variable is the rate of reaction which is caused by the rate of carbon dioxide produced in minutes. The constants would be the brand of Alka-Seltzer, brand of balloons,

So this is what keeps the air trapped when vertically held in water. The scientist then got another soda can and added water with an eye dropper. He put the can on the heater, the can instantly made the water from the eye dropper evaporate into water vapor. Then the scientist again and inserted the can into the water the results, the same with the can being full of