Introduction
Does the number of candles affect how high the water rises? The number of the candle does affect how high the water rises. I know this because there would be less oxygen for the candles to stay lit. Further, the water wants all the oxygen so if there are more candles lit then the water will rise more and faster so the candle wouldn’t have as much oxygen
Experimental design This experiment was done in 4 replicates. The independent variable in this experiment is the number of candles and the dependent variable is the height of the water that is measured in centimeters. Some of the control variables are keeping the candles the same size also, the same type/brand. further, the same amount of time to let the water to rise. Lastly,
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Repeat these steps until you have lit all the candles.
Results
Does the Number of Candles Affect the Height of the Water?
Number of Candles Height of the Water (cm) Period 1 Period 2 Period 3 Period 7 Average
1 2.3 2.4 1.5 2.3 2.1
2 3.8 3.8 3.3 3.5 3.6
3 4.5 4.8 4.9 4.3 4.6
4 5.3 5.6 5.5 5.4 5.5
Analyzing and Interpreting Data
Does the number of Candles affect how high the water rises? A possible answer to this question is the number if candles does influence how high the water will rise. The data does shows that it does support the hypothesis that could be right because, in the graph the bars are rising. Looking back at the data there are however some repeats. Including, in period 1 and 4 when there is 1 candle they have a repeat of 2.3 centimeters. Also, in period 1 and 2 with 2 candles which was 3.8 centimeters. Lastly, period 3 and the average of 4 candles is 5.5 centimeters. The recorded data was the averages and they still increased in height in the bars. A few things that could have been done or have been a mistake is using different type of candles and using different sizes of candles. Things that could have impacted the experiment is the lid getting hotter as getting closer to the end of the experiment. Also, measuring from the end of the ruler definitely would have impacted it because you wouldn’t have an accurate measurement if you didn’t start at zero. Some questions that could be tested further is will the bigger candles make a difference or will the
The gummy bear in water grew bigger because the water has minerals in it so it can grow more, I know that the one in water is bigger because in the data table it showed the amount of change and the gummy bear in the water grew 0.5cm more than the other gummy bears put in liquid.
the replicate shows the same trend as the first experiment. I used a measuring cylinder and a beaker to measure out the amounts of water; however these did not seem to affect the quality of my results. To increase the accuracy of my results I could have perhaps used a burette. Even though I did the best I could to keep the experiment accurate, I did. some places there were mistakes that unintentionally occurred.
The fair testing will be carefully checked so the results do not come out to be void. The light intensity will be changed for it is the only variable used in the experiment. Though the temperature, watt of the bulb, amount of water, size of the plant and posit...
As the light is increased so would the rate of photosynthesis. Apparatus: boiling tube, 250ml beaker, bench lamp, ruler, sodium
The hypothesis for this experiment was, If three different types of waters (saltwater, fresh water, tap water) are tested, then the liquids won’t evaporate at the same rate and tap water will evaporate at the fastest rate because it won’t have any non-volatile substances to hold it back from evaporating.
Variables --------- During the experiments, the water will be heated using different spirit burners containing different alcohols. I will be able to change different parts of the experiment. These are the. Volume of water heated:
Two electrical wires * Stopwatch * Thermometer Method I put a piece of Elodea Canadensis (pond weed) in a test tube and covered it with water. The test tube was then placed in a beaker with a thermometer so that the water stayed the same temperature, this was then placed in a cardboard box with a bulb attached to a voltmeter by the electrical wires so that I could concentrate how much light the plant got. I varied the voltage (intensity) of the bulb and counted how many bubbles of oxygen were created at each voltage in one minute. I tested each voltage three times for accuracy for a minute each time. Results Preliminary Experiment Amount of bubbles Light intensity (lux)
cm∆T where c is the specific heating capacity of water (4.17 Jg-1K-1) -m is the mass of water, in g -∆T is the change of temperature of the water Apparatus Apparatus I will use Size of the apparatus Value /quantity distill water / >3 litres, as much as possible* thermometer 0-110C thermometer 1 measuring cylinder 100 cm3 1 electronic balance correct to 2 decimal places 1 Bunsen burner / 1 draught shielding each approx. 20cm x 20cm 5 metal calorimeter *** 4 clamp about 1 meter 6 spirit burner with wick / 4 match/wooden stick / as many as possible burner cap / 4 tile as big as possible 1 Propan-1-ol / half filled the spirit burner * Butan-1-ol / half filled the spirit burner * Butan-2-ol / half filled the spirit burne * Cyclohexanol / half filled the spirit burner * ***-I will find out in preliminary test *-Half filled the spirit burner because alcohol should be away from
We used wheatgrass were 40 wheatgrass seeds, two empty pots, soil, and water. We first added soil for both pots and 20 wheatgrass seeds in each pot. My partner and I decided that we label pot one experiment which is “sugar and water” and pot two control which is “water” only. The experiment was for almost four weeks we had to make sure both get the same room temperature and water, so we can see the results after this amount of time. Both pots had same room temperature so both can have the same amount of sunlight also, the same amount of water which is a glass of water from the sink once a week. In the experiment pot we added a glass of water with one teaspoon of sugar and the control pot glass of water. Every week we used to see both pots grow almost the same. At the end of the experiment, my partner and I measured the length for both plants and we recorded the average for each plant, so we can know the rate of growth
There are more than 400 commercial, religious and institutional manufacturers of candles in the United States, in addition to scores of small craft producers for local, non-commercial use.
Part A of the experiment, we were measuring the density of water. In this part, we measured by difference by measuring the mass of the empty graduated cylinder which was 46.35 grams and then added 25.0 milliliters of water to it. When subtracting by difference, our mass of the water was 25.85 grams. This was close to the measurements of the water added to the graduated cylinder. The density of the water was 1.0 grams/milliliters.
Independent variables: The temperature of hcl gas will be decreased and increased throughout the experiment.
The design for this study will be a simple between subject experiment consisting of one experimental group and one control group. The independent variable will be warm colors. The dependent variable will be mood. The main goal is to determine if the independent variable will influence or cause difference in the specified dependent variable. The experiment group will spend 60 minutes in a warm paint color room and their mood will be measured. The control group will spend 60 minutes in a neutral paint color room and their mood will be measured.
Aim: To determine the effect of temperature change on the height of water in capillary action at 8 seconds.
same level in the 400 cm3 beaker. The colour of the lamp will stay the