The Greenhouse Effect Global Warming in a Beaker BACKGROUND The greenhouse effect The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs). The absorbed energy warms the atmosphere and the surface of the Earth. This process maintains the Earth’s temperature at around 33 degrees Celsius warmer than it would otherwise be, allowing life on Earth to exist. The problem we now face is that human activities – particularly burning …show more content…
Figure 3: LoggerPro Screenshot of temperatures in Beaker 1 (Part I) Figure 3 shows how temperatures in Beaker 1 increase when the Lamp is on and how it decreases when it is off. Figure 4: Diagram of temperatures in Beaker 2 (Part I) As the temperature began to rise within the area under the heat lamps, so did the temperature within the Beaker 2 and vice versa as it is demonstrated in Figure 4. PART II The top of Beaker 1 and Beaker 2 were covered with a plastic wrap. Figure 5: LoggerPro Screenshot of temperatures in Beaker 1 (Part II) As shown is Figure 5, increase and decrease of temperatures behaves similarly as it does in Part I of this experiment. Figure 6: Diagram of temperatures in Beaker 2 (Part II) In the Part II of our experiment, Beaker 2 was covered with a plastic wrap and Figure 6 shows some oscillations of temperatures in that area. PROCESSING DATA PART I The effect of a Plastic Cover Beaker 1 Temperature (°C) Beaker 2 Temperature (°C) Temperature Difference 0 Minute 24.1 23.1 1 5 Minute 27.4 27.9 0.5 10 Minute 26 25 1 15 Minute …show more content…
Beaker 2 cooled by 2.9°C (from 27.9°C to 25°C) and temperature in Beaker 1 fell by 1.9°C (from 29.9°C to 28°C). The cause of this result is the plastic wrap which did not allow the temperature to cool down quickly. In the second part of this experiment, greenhouse gasses were introduced to Beaker 1 by exhaled air. The exhaled air contained Carbon dioxide (CO2) and water vapor (H20). When Part II ended, one cardinal problem was noticed. The lamp which provided the light was defective; it was more focused towards Beaker 2. This could be related to less accuracy of following results. The thermometer showed that in Part II, Beaker 1 with greenhouse gasses warmed slower than Beaker 2. Hence, Beaker 1 also cooled slower than Beaker 2. Comparing results from Part I and Part II demonstrates how Beaker 1 cooled faster in Part II when it contained GHG than in Part I. Additional outlier which could be related to the results is wobble of the beakers which occurred at some point while Part II was in realization. This outlier may had an impact in a way that it caused the temperature to drop. Outlier has a negative effect on the data and it generates fall out of the general
One way we could improve the experiment is by doing more trials, the more trials the more accurate the resolutes are. Another way we could improve the experiment is to have more time so we could make sure all the temperatures
The temperature probe was then quickly cooled to room temperature. When this was achieved, the hot water was immediately transferred into the calorimeter. This method of keeping the temperature probe cooled before measuring a new temperature was repeated throughout the entire experiment. Temperature data was collected for 180 s while swirling the temperature inside the calorimeter. The calorimeter still contained the warm water.
Greenhouse gases are those that absorb and emit infrared radiation in the atmosphere. The most abundant greenhouse gases in Earth 's atmosphere are: Carbon dioxide, Methane, Nitrous oxide ,Ozone ,Chlorofluorocarbons (CFCs). Human activities also contribute to climate change by the amounts of greenhouse gases, aerosols (small particles). The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas in the atmosphere.
In the second portion of this experiment we will keep the temperature constant and divide the ½ tablet of Alka- Seltzer into 2 pieces ,3 pieces and an unbroken ½ tablet. It is my belief that Alka-Seltzer
As mentioned in the hypothesis, the prediction is that as the temperature increases towards the optimal, the rate of respiration will increase. As the temperature exceeds the optimal, the rate of respiration will decrease. The temperature of the environment can be varied by placing the respiration chamber under a temperature-controlled water bath/cooling bath. The temperatures that will be used in this experiment will range from 0ºC to 50ºC in 10ºC increments. Digital thermometer will be used to measure the temperature of air.
The greenhouse gases in the atmosphere absorb some of this energy, while the rest is emitted back into space, as a naturally occurring cycle that repeats daily which is needed to keep the earth 's surface warm. The green house gases that humans are adding to the atmosphere are like the steroids of the climate system. The problem is that humans are producing far too much greenhouse gases due to increased human activities that demand the use of energy, which has led to emissions and an increase in greenhouse gases. An increase in these greenhouse gases in the atmosphere means more heat is trapped in the atmosphere, and less is emitted into space, which essentially warms up the average temperature of the earth. A small increase in temperature creates major effects to our environment, which is seen in the idea of climate change.
However some of that heat energy gets converted into infrared radiation and gets sent back to space. This is called the greenhouse effect because it resembles the way that a greenhouse works. We need the greenhouse gases because without them our planet would be too cold for plants to grow and without plants, there would be no oxygen for living organisms. But people are adding more greenhouse gases to our atmosphere. Whenever we drive our petrol cars, use electricity or manufacture a product in a factory, we use energy and a large portion of this energy comes from burning fossil fuels.
In each of the experimentations I studied, I have determined how the temperature of the water alters the speed of the Alka-Seltzer tablets being disintegrated. I have selected to differentiate on these two specific components because I wanted to collate and evaluate the number of carbon dioxide being created from the two dissimilar water temperatures. 3. The other key essentials I needed in order to control my experimentations were how much time it took, the quantity of water being utilized, and the temperature of the water. I have controlled both of these key essentials by utilizing a timer, a graduated cylinder, and a thermometer.
37.8 °C and 36.3 °C 30-40 °C 3. 41.7 °C and 40.2 ° C 40-50 °C 4. 50 °C and 48 ° C 50-60 °C Average temperatures: (37.8+36.3)/2=37.05 °C (41.7+40.2)/2=40.95 °C (50+48)/2=49 °C Table 1 -The values of experiment Temperature (°C) Density (kg/m3) 26.5 995 37.05 992.5 40.95 991 49 990 70 984.856 80 982.524 90 980.272 100 977.93 Table 2. The values in steam table Temperature (°C) Density (kg/m3)
Global warming is a big issue that the world has been discussing about. This happens when the sunlight’s visible light energy in which it transforms into infrared light energy. It leaves the Earth’s atmosphere because it is absorbed by the greenhouse gases and raises the Earth’s temperature. Carbon emissions do not fully address to threaten global warming, but they can be reduced by taking action. But carbon dioxide is the primary driver of global warming.
Place the the beaker onto a hot plate that is on a low heat setting (about setting 3). Every 5 minutes for 20 minutes, measure the circumference of the balloon and record it in Data Table A. You can measure the circumference of the balloon by looping a piece of string around it then using a ruler to measure the string’s length. Record the data in the data
So What Causes It? Global warming occurs when greenhouse gases, such as carbon dioxide, nitrous oxide, and methane trap heat inside the earth 's atmosphere. Think about what happens when you open your car door after the windows have been rolled up on a hot day.
If you remove all of the carbon dioxide from the atmosphere, the temperature decreases. Carbon dioxide is a greenhouse gas. Greenhouse gases trap heat in the atmosphere as they absorb and re-emit infrared radiation. The absorption and reemission of infrared radiation contributes to the production of atmospheric heat. By removing a primary heat source
Global Warming Proposal Introduction The phenomenon of constant increase in the earth’s temperature is known as global warming. The excessive use of fossil fuels is destroying our environment as well as wildlife. It is a great threat to human life too, as this activity is causing intense pollution and also results in damaging the ozone layer.
Greenhouse Gases are types of gases that take heat escaping from the atmosphere and send it back to Earth. According to NASA, the Earth’s average temperature would be approximately 0 degrees Fahrenheit—as opposed to today’s average 60 degrees Fahrenheit—without the naturally occurring Greenhouse Gases. This is because of the Greenhouse Effect. Gases like Carbon Dioxide and Methane are able to take heat and emit it back towards the Earth, thus giving them the name “Greenhouse Gas” (“What are greenhouse gases?”). The heat given from these gases can last for hundreds of years, making it sometimes unpredictable as it spreads around the world.