Propose Temperature vs X Factor Experiment

Instruction: Come up with an experiment idea and answer the following question: See the provided example. Note - You are not going to conduct the experiments, this is just a proposal.

Example

Temperature vs X Factor Example: Wind Cooling Experiment Overview: The wind cooling experiment was designed to determine if wind blowing over water would lower the temperature of the water. The design of this experiment was based on my observation that | feel cooler when the wind is blowing. Scientific Principle: Evaporation cooling, which occurs when heat is lost by the change of water from a liquid to gas state. Hypothesis: If air is blown over water, then it will lower the water temperature. Dependent variable: Water Temperature Categorical independent variable: wind (fan) or no wind (no Fan) Controlled Variables: Fan speed and duration, initial water temperature, container type, water volume, and thermometer type Uncontrolled Variables: small variation in wind, minor differences in containers, precision of the thermometer. Methods: Categorical Experiment: We will compare the water temperature between water with a fan blowing over it for 5 minutes to water without a fan. We will have 5 samples for each category. Continuous Experiment: Observe the temperature change of water when a fan blows over the water for 10 minutes. We have will have 5 samples (once sample every two minutes). Here is an example of a temperature vs x factor experiment. We designed the wind cooling experiment to determine if wind blowing over water would lower the temperature of the water. The design of our experiment was based on the observation that we feel cooler when the wind is blowing, and we believe that this is because the evaporation of perspiration on the skin lowers skin temperature. The scientific principle is known as evaporative cooling, which occurs when heat is lost by the change of water from a liquid to a gas state. We decided to test this observation with a simple experiment. We started with the hypothesis that if air is blown over water it will lower its temperature. To test this hypothesis, we designed a simple experiment using a fan and cups of water. In our experiment, the dependent variable is water temperature, and the independent categorical variables are fan or no fan and in our continuous independent variable is fan duration. In any experiment, there are variables that can be controlled and some that cannot be controlled. In our experiment, we know that we can control fan speed and duration, initial water temperature, container type and water volume and Wind Cooling Experiment with Categorical Independent Variables Names: AT and PE Introduction We've noticed that wind makes us feel cooler. We wanted to determine if wind actually lowered water temperature (temp) The principle we investigated is called evaporative cooling, which is the physical process by which temperature are lowered when evaporation occurs. If we blow a fan over water, then the water temperature should be lowered. Methods + We designed a simple experiment using a fan blowing over 5 cups of water. Independent Variables: Fan or no fan Dependent Variable: Water temp. Treatment : fan for 5 minutes Control: No Fan Controlled variables: Water volume, initial starting temp, cup type Uncontrolled variables: Fan variability Measured the temp of water in each cup after fan blow for 5 minutes Equipment: Thermometer, paper cups, fan, 1 cup of water Methods . F Treatment Group in = 5 Control Group (n = 5} Figure 1: Experimental Schematic igure 2: Photo of experimental setup Results The fan lowered the temperature about 1 degree. Table 1: Data from categorical experiment Water Temperature 666 668 670 672 674 No Fan Fan Table 1: Boxplots showing water temp for fan and no fan cups. Discussion Our hypothesis was correct because the temp was lowered in the cups with fans. By lowering the water temp in the cups, this experiment demonstrated the principle of evaporative cooling. A major limitation of this study may be related to the thermometer, which may be cooling in the wind while the water is not actually cooling. Thanks and Acknowledgements Aunt and Uncle Menchu for helping with experiment AT, PE designed experiment AT conducted experiment PE created charts AT, PE worked on poster Wind Cooling Experiment with Continuous Independent Variables Introduction We've noticed that wind makes us feel cooler. We wanted to determine if . wind actually lowered water temperature (temp) The principle we investigated is called evaporative cooling, which is the physical process by which temperature are lowered when evaporation occurs. If we blow a fan over water, then the water temperature should be lowered. ethods M We designed a simple experiment using a fan blowing a cup of water for 10 minutes. Independent Variables: Fan or no fan Dependent Variable: Water temp. Controlled variables: Water volume, initial starting temp, cup type Uncontrolled variables: variability Measured the temp of water at 1, 3, 5, 7 and 10 minutes Equipment: Thermometer, cups, fan, 1 cup of water Fan paper Names: AT and PE Methods Figure 2: Photo of taking water temperature Results After 10 minutes, the fan lowered the temperature about 1 degree. Table 1: Data from continuous experiment Water Temperature 664 666 668 670 662 10 Time (Minutes) Table 1: Scatterplot showing the relationship between water temp and fan duration. Discussion Our hypothesis was correct because the temp was lowered in the cups with fans. By lowering the water temp in the cups, this experiment demonstrated the principle of evaporative cooling. A major limitation of this study may be related to the thermometer, which may be cooling in the wind while the water is not actually cooling. Thanks and Acknowledgements Aunt and Uncle Menchu for helping with experiment AT, PE designed experiment AT conducted experiment PE created charts AT, PE worked on poster