Greenhouse effect and global warming lab paulding county. There are some sources which can act as sink for greenhouse gases. Conclusion conclusion the greenhouse effect is a natural. We amplify or enhance the natural greenhouse effect when we load the atmosphere with an excess of greenhouse. However, if the greenhouse effect is too strong, earth gets warmer and warmer. Oakridge national lab, carbon dioxide information analysis. Generally, a physical property of the atmosphere of earth is referred by an expression called greenhouse effect. What do you notice when you get into a car that has been sitting in the sun for a while.
Too much carbon dioxide and other greenhouse gases in air can make the greenhouse effect stronger which would result to global warming. Global warming d01 page 1 d01 global warming and greenhouse effects focus on inquiry the student will identify, explore and debate key questions that scientists have been investigating on global warming. Greenhouse effect and global warming environmental. Our planet earth is facing a serious problem called global warming. Adapted from climate and the earths energy budget by rebecca lindsey, january 14, 2009. About 25 percent of incident solar radiation is reflected back into space by the atmosphere, about 25 percent is absorbed by gases in the atmosphere, and about 5 percent is reflected into space from the earths surface, leaving 45 percent to be absorbed by the. Greenhouse effect, a warming of earths surface and troposphere the lowest layer of the atmosphere caused by the presence of water vapor, carbon dioxide, methane, and certain other gases in the air. The gases that contribute to the greenhouse effect include water vapor, carbon dioxide co2. Also sometimes known as heattrapping gases, greenhouse gases are natural or manmade gases that trap heat in the atmosphere and contribute to the greenhouse effect.
Graph and compare the effectiveness of different naturally occurring greenhouse gases. The greenhouse effect deals with global warming as a result of changes in the composition of the atmosphere. Ramanathan lab scripps institution of oceanography. Explore the atmosphere during the ice age and today. Global warming and the greenhouse effect 1588 words 7 pages. Zoom in and see how light interacts with molecules. Exploring greenhouse gases, global warming, and climate change. Students think about and discuss global warming and the greenhouse effect while working in the garden. The gwp of a greenhouse gas is the ratio of global warming, or radiative forcing. The greenhouse effect is a natural process whereby gases and clouds absorb infrared radiation emitted from the earths surface and radiate it in all directions, which results extra heating of the atmosphere and the earths surface. The problems begin when human activities distort and accelerate the natural process by creating more greenhouse gases in the atmosphere than are necessary to warm the planet to an ideal temperature. Although the greenhouse effect is a nature cycle, humans have greatly increased the concentrations of greenhouse gases, thus causing a significant increase in the overall greenhouse effect.
A number of gases are involved in the human caused. Global warming is the increase in the average surface temperature of the earth due to the effect of the buildup of greenhouse gases, due to deforestation and burning fossil fuels which causes the heat to. Understanding the greenhouse effect chicago botanic garden. Certain gases in the atmosphere resemble glass in a greenhouse, allowing sunlight to pass into the greenhouse, but blocking earths heat from escaping into space. Conduct research using a variety of primary sources to explore perspectives in the global warming. Pdf experiment with small greenhouses, adding various amounts of. The greenhouse effect greenhouse effect greenhouse. Global warming is the phenomenon of gradual increase in temperature near the earths surface. Mg greenhouse effect right campbell county schools. Pdf the greenhouse effect a high school experiment. There are several ways to demonstrate the greenhouse effect in the.
Greenhouse effect and global warming our atmosphere is composed of many different gases. Ensure that students understand and adhere to safe laboratory practices when. Global warming, the enhancement of the natural greenhouse effect caused by emissions associated with human activities of. Conclusion the greenhouse effect is a natural process where the atmosphere traps some of the suns energy, warming the earth enough to support life. It plays a crucial role in the weathering of rocks. A questions and answers about greenhouse warming policy. I think that simulating adding carbon dioxide and other greenhouse gases to.
While the greenhouse effect is an essential environmental prerequisite for life on earth, there really can be too much of a good thing. Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and fluorinated gases. This effect is caused by increased levels of carbon dioxide, chlorofluorocarbons and other gases in the air, many of them released by human activity. Check out our video on greenhouse effect and global warming by letstute.
Change the greenhouse gas concentration and see how the temperature changes. Of those gases, known as greenhouse gases, water vapor has the largest effect. The greenhouse effect is the heating of the surface of a planet or moon due to the presence of an atmosphere containing gases that absorb and emit infrared radiation. Teacher guide exploring greenhouse gases, global warming, and. Global warming and greenhouse gas experiment beyond benign. The gases let light through but then keep much of the heat that radiates from the surface from escaping back into space, like the glass walls of a greenhouse. There is a natural greenhouse effect that the planet needs to support life. Simple models for global warming science projects sciencing. Exploration while the other 3 begin their garden work. These experiments are presented in the context of the following subject areas. Please consult your current flinn scientific catalogreference manual for general guidelines.
Carbon dioxide is a trace gas that has existed in our atmosphere for billions of years. There are some gases in our atmosphere that act like an insulating blanket to hold solar energy to keep our earth warm just like a greenhouse keeps plants warm. This article describes one casestudy module that allows the student to evaluate data sets to study greenhouse gases and determine if global warming is real and due to anthropogenic activities. The laboratory experiment has been implemented at two universities. The concepts of radiative forcing of climate change and global warming potential as measures of the absolute and relative strengths of greenhouse gases are discussed. Once incoming solar energy reaches earths atmosphere, what parts of the earth system absorb and hold the energy, warming the planet. Carbon dioxide accounting for about 76 percent of global. The study report on the greenhouse gases and their impact on global. The experiment is presented in the following pages. This phenomenon has been observed over the past one or two centuries. The most significant gases that cause global warming via the greenhouse effect are the following. The lab may be done when studying the atmosphere, energy sources or environmental changes. Greenhouse gases tend to absorb this infrared radiation as it is reflected back towards space.
What are greenhouse gases and the greenhouse effect. They will answer questions on this article and fill in a graphic organizer. Greenhouse effect and global warming lab worksheets. The gases that contribute to the greenhouse effect include water vapor, carbon dioxide co2, methane. So it is important to consider reduce this effect by reducing the emission of greenhouse gases. Longlived gases that remain semipermanently in the atmosphere and do not respond physically. Thus, greenhouse gases trap heat within the surfacetroposphere system. Scientists attribute the global warming trend observed since the mid20 th century to the human expansion of the greenhouse effect 1 warming that results when the atmosphere traps heat radiating from earth toward space certain gases in the atmosphere block heat from escaping.
We call this situation the greenhouse effect, and we call these gases the. The greenhouse effect is the warming of climate that results when the atmosphere traps heat radiating from earth toward space. Greenhouse gases in the atmosphere of the earth trap some of this radiation that would otherwise be released back into space, warming the planet. Large pickle jars, smaller jelly jar, laboratory thermometers, white cardboard, sheets of. The average global temperature increased by almost one degree celsius during the 20th century, and its still rising. Global warming is a gradual increase in the earths temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, cfcs, and other pollutants. Global warming is happening now, and scientists are confident that greenhouse gases are responsible. Students will also investigate some of the factors that are increasing greenhouse gas emissions and resulting in global climate change such as clearing land for. Greenhouse effect global warming greenhouse gases background carbon dioxide, co 2, is a colorless gas that is present in our atmosphere due to natural and manmade sources. It includes a greenhouse gases lab, a greenhouse gases reading with guiding questions, a global warming menu project, an ngss climate change unit as well as a powerpoint with guided not. To understand what this means for humanity, it is necessary to understand what global warming is, how scientists know its happening, and how they predict future climate. Greenhouse gases absorbs infrared radiation balance of energy of planet gets damage and along with this, there will be a.
The students will use the materials provided to create three different environments and measure. G64 greenhouse effect labfinalhk edible schoolyard. A sink is a place or a system with the ability to recapture these. Do all atmospheric gases contribute to the greenhouse effect. The greenhouse effect and global warming how the greenhouse effect works.
Greenhouse effect and global warming easy peasy allin. Implications of the greenhouse effect and climate change. Essay on global warming and the greenhouse effect bartleby. Greenhouse effect, greenhouse gases, increase of carbon dioxide, global temperature rising, effect of global warming, wa.
It touches upon the greenhouse effect and its effects on earth. If the global warming process continues as present the earth will no longer be a better place for living beings. Students will read an article on one effect of climate change global warming in small groups. This laboratory demonstrates how greenhouse gases, such as carbon dioxide, can contribute to global warming and climate change. Page 1 ventura county air pollution control district, ventura, ca effects of global warming lesson concepts. Global warming refers to the gradual increase of the earths average temperature. A greenhouse effect inquiry lab overview the surface of the earth is warmed by the suns radiation. Each group rotates through the greenhouse effect lab as the other groups work in the garden.
Carbon dioxide and other greenhouse gases in the upper atmosphere, such as water vapor, ozone, methane, nitrous oxide and chlorofluorocarbons cfcs absorb and. Scientists have collected data on the longterm climate, including measuring both average temperature and carbon dioxide co 2 levels. Scientists were not around then to measure the small amounts of co. This worksheet has 22 earth science regents questions about the the greenhouse effect and global warming.
Global warming is a phenomenon described as heating of the planet of due to an insulation layer formed by the greenhouse gases ghg over the atmosphere of the earth which traps heat shahzad. The exercise stresses handson activities and includes performing two laboratory exercises, the use of two computer programs, a mathematical exercise. In this lab, you will explore some of the elements that absorb solar energy, the greenhouse gases ghg. Carbon dioxide co 2 is an atmospheric constituent that plays several vital roles in the environment. Greenhouse gases and their impact on global warming article pdf available in journal of scientific research and reports 176. Greenhouse gases are actually necessary, as they help to keep the earths surface warm by trapping the earths heat the greenhouse effect. Hypothesize about the effects of global warming on the climate and the worlds populations. Projects like these allow students to create a working model on global warming effects, helping them understand the impact of temperature changes and ways to mitigate them.
It is the actual process of greenhouse gases absorbing heat in the atmosphere. Scientists debate whether the average temperature of the earth is increasing, and if human activity is the principal cause. Greenhouse effect and global warming environmental chemistry. Without the greenhouse effect, earth would be very cold, too cold for living things to live. The global warming and greenhouse effect laboratory exercise was developed to demonstrate global warming for introductory chemistry courses for both majors and nonmajors. The car is typically a lot hotter than the surrounding air. The greenhouse effect is a leading factor in keeping the earth warm because it keeps some of the planets heat that would otherwise escape from the atmosphere out to space. I hope you enjoy this online lecture on greenhouse effect and glob. Analyze global warming diagrams and resources to obtain a clear understanding of this scientific process. The best lab based experiment is described on the rsc website at. Global warming experiment background information our climate is changing because humans have increased the amount of greenhouse gases ghgs in the atmosphere.321 1469 249 1167 777 88 1358 1106 805 1434 1212 160 375 1282 1537 876 1109 670 419 1480 519 1191 160 589 711 685 1000 473 1281 948