Worksheets 1 Think about it Let’s take three minutes to look around and think: what is the role of energy in our daily lives? Read the following pictures carefully. Think about the relationship between the pictures in Group A and Group B. Group A Group B 2 A. Scramble for Energy Activity 1: Investigating into the scramble for energy Ka Ka, I have been searching information about energy resources recently. I found some data on the global energy production and consumption in the website of the U.S. Energy Information Administration (EIA). I found a surprising phenomenon. Figure 1: Global Energy Production and Consumption Figure 2: Global Energy Production and Consumption 1980 1985 1990 1995 2000 2005 2008 Production* 287 307 350 363 394 458 489 Consumption* 283 309 348 365 398 462 493 * Quadrillion Btu Source: U.S. Energy Information Administration You will get it after looking at the following graph. Siu Chi, what surprising phenomenon did you find? 3 1. Refer to Figure 1, describe the trend of global energy production and consumption from 1980 to 2008. 2. (a) According to the data shown in Figure 2, complete the following table. 1980 1990 2000 2005 2008 Energy Production – Energy 4 Consumption* * Quadrillion Btu (b) With reference to the answer in question 2(a), what are the energy problems? Oh ...... you mean energy __________ is becoming more serious. In fact, in order to obtain sufficient and stable energy resources, countries have started the scramble for energy. The situation is becoming more and more severe. Why don’t we study it together! Alright! Let’s work on it together! Summary Think about it: What problems will be caused by the above situation? 4 Activity 2: Where are the energy resources? 1. Global distribution of major energy resources (read P.2 of the Information Folder: Information Sheet 1) a. According to Information Sheet 1, colour the maps below according to the key of Figure 3 – 5 to show the spatial distribution of oil, gas and coal. Figure 3: Distribution of oil reserves of different continents / regions Figure 4: Distribution of natural gas reserves of different continents / regions Figure 5: Distribution of coal reserves of different continents / regions Key: Largest reserve (red) Second largest reserve (orange) Third largest reserve (yellow) Others (white) b. With reference to Figure 3 – 5, are oil, gas and coal evenly distributed? Describe their spatial distribution pattern. 2. Uneven share of energy resources between more developed and less developed countries (read P.2-4 of the Information Folder: Information Sheets 2 and 3) Data analysis: According to Information Sheet 2, complete the table on P.6. i. Based on GNP per capita, classify the countries into more developed and less developed countries. ii. Calculate the net amount of energy of the countries (production - consumption). 5 Country MDC Net amount of energy Country (Quadrillion Btu) Net amount of energy (Quadrillion Btu) LDC Extended activity Draw a bar chart in the space below to show the net amount of energy of these countries. 6 a. According to Information Sheet 2 and the above table, what are the differences between the net amount of energy of more developed countries and that of less developed countries? b. Following the above question, what are the reasons for the differences between the more developed and less developed countries? (Hint: compare their economic conditions, levels of industrialization, living standards, etc.) More developed countries Less developed countries Economic conditions Levels of industrialization Living standards Others c. By summarizing the above information and those included in Information Sheet 3, what are the implications caused by the spatial distribution of energy resources? (Hint: economic and political aspects) 7 Extended Activity Think about it: If you were the head of state of a more developed country, how would you solve the problem of energy shortage? Summary The global energy distribution is even / uneven. In addition, the energy production / consumption of more developed countries is greater than the energy production / consumption, while the situation in less developed countries is reverse, making energy competition more serious. 8 Activity 3: Knowing the types of energy resources Ka Ka, I still cannot figure out… After the above investigations, aren’t we clear about the scramble for energy? But…isn’t the energy of the world inexhaustible? If it is inexhaustible, there is no need to compete for it. Isn’t it? Hmm... I'm not sure. Why don’t we ask the teacher! Students, let’s learn about the types of energy resources! Please look at the following photographs carefully, and state what types of energy resources are they using? Please write the answers in the box. Photograph 1 Photograph 2 Photograph 3 Photograph 4 Do you know the differences among the above energy resources? How can they be classified? Try to complete the chart on next page. 9 Energy resources Characteristics Characteristics Examples Examples Summary Energy resources can be divided into two types: _______________ and _______________. The energy being used in our daily lives is mainly _______________ energy. 10 B. Current energy problems Warm-up activities: Ka Ka, does your family need to pay expensive electricity bill? We pay more than HK$200 each month on average. Why asking? I have just read a report about electricity consumption in Hong Kong* which said that electricity consumption in Hong Kong is quite high, resulting in environmental problems. High electricity consumption implies that more fossil fuels are used, resulting in serious environmental problems. I have also watched a lot of videos online. Classmates, let’s take a look! * Read P.6 in the Information Folder: Information Sheet 4 Browse the following websites. Watch Videos 1-4 and identify the types of environmental problems. Video Environmental problem 1. 「救救北極熊,要你行動」(1:30) http://www.greenpeace.org/hk/multimedia/videos/ climate-energy/save-polar-bear/ 2. 「海洋酸化」(1:15) http://www.greenpeace.org/hk/multimedia/videos/ climate-energy/ocean-acid/ 3. 「煤有問題」 (1:04) http://www.greenpeace.org/hk/multimedia/videos/ climate-energy/coal-nightmare/ 4. 「大連石油洩漏現場‧實拍」(1:24) http://www.greenpeace.org/hk/multimedia/videos/ climate-energy/dalian-oil-leak-live/ Video source: Greenpeace (Hong Kong) http://www.greenpeace.org/hk/#tab=3 11 Activity 4: Electricity ‧ fossil fuels ‧ environmental problems (read P.7-10 of the Information Folder: Information Sheets 5-8) Group discussion: what are the environmental problems caused by exploiting and using fossil fuels? 1. Use the following box to summarize the outcome of discussion Environmental problem:_______________________________________ How do exploiting or using fossil fuels lead to the above environmental problem? 2. Use the following table to record the presentations of other groups. Environmental problem How do exploiting or using fossil fuels lead to this environmental problem? 12 Extended Activity Construct a concept map to demonstrate "the types of environmental problems caused by exploiting and using of fossil fuels" Environmental Problems Summary Exploiting and using fossil fuels result in many environmental problems, such as _______________, _______________, _______________ and _______________. 13 Activity 5: Goodbye forest! (Read P.11-15 of the Information Folder: Information Sheets 9 to 10) Siu Chi, besides using fossil fuels, fuel wood can also damage the environment seriously. Ka Ka, in this modern era, are people still using fuel wood? Do you know which parts of the world are still using a lot of wood as fuel? Why do these areas still need to rely a lot on wood for energy? Try to complete the following flow chart to show "the damages to the natural environment by extensive use of fuel wood". __________________ ___________________ Summary Less developed / more developed countries are still relying on fuel wood as the basic energy source, resulting in large amount of rain forests and forest resources being exploited and cut. This leads to serious environmental problems. 14 Extended Activity Watch the video: A brief history of fossil fuels 1. Watch the video produced by Post Carbon Institute (about 5 minutes): a. Official website, in English without subtitles http://www.postcarbon.org/video/175694-the-ultimate-roller-coaster-ride-a b. Online video, in English with Chinese subtitles http://www.youmaker.com/video/svb5-fd1757305dd142ecadb4a7e3014d4869001.html 2. Which two types of fossil fuels does the video mention? Apart from these, what other types of energy have been mentioned? 3. As mentioned in the video, what are environmental problems caused by using fossil fuels? 4. After watching the video, what is your reflection on the use of energy in your daily life? 15 C. Renewable energy and nuclear power Warm-up activities: As the use of fossil fuel and fuel wood will cause serious environmental problems, why don’t we choose to use other type of energy resources to replace them, such as renewable energy? In fact, we quite often use renewable energy in our daily lives. Please take a look at your personal belongings to see whether there is any item using renewable energy? Can you point out what kind of renewable energy does it use? Item: __________________ Type of renewable energy: _______________________ Do you know where the building as shown in the photographs is? What kind of renewable energy is it using? I am a wind turbine relying on __________ to drive the blades and to move the turbine. I have been standing on Tai Ling* in __________ since 2006. * Teachers can go to the following website to let students see the real time operation of the Lamma Winds. http://www.heh.com/hehWeb/AboutUs/RenewableEnergy/RealTimeOperation/Index_zh.htm 16 Activity 6: Understanding renewable energy Read carefully the following description and photographs about various types of renewable energy. Match the descriptions with the types and photographs. Make use of the Earth’s Solar Energy ‧ ‧ internal heat, such as steam or hot water to drive the turbines ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ ‧ to generate electricity Make use of the kinetic energy of water flowing from Wind Power ‧ ‧ higher level to drive turbines and generators to generate electricity Hydro-electric Make use of the movement of ‧ power ‧ waves to drive turbines to generate electricity The energy of solar radiation, Biofuels ‧ ‧ used for electricity generation or production of hot water Geothermal Make use of wind power to ‧ energy ‧ drive generators to generate electricity Large quantities of corn, soybeans, sugar cane etc. are Wave Energy ‧ ‧ grown to produce ethanol through the processes of grinding and fermentation. Summary Renewable energy includes mainly: _______________, _______________, _______________, _______________ , _______________ and _______________. 17 Extended Activity Data analysis: Great Powers of renewable energy (read P.17-19 of the Information Folder: Information Sheet 11) With reference to Information Sheet 11: a. Which countries do you think are the strong powers in the development of renewable energy? b. Why? Explain this by referring to the data and other relevant information (the geographical location, natural conditions and economic situations, etc. of those countries). 18 Activity 7: What are the advantages of using renewable energy? Ka Ka, what are the advantages of using renewable energy? I'm not sure. Why don’t we ask the teacher! There are a lot of advantages of using renewable energy. Let’s study the following information* first. List the advantages of using renewable energy onto the table below. …Denmark plans to generate electricity by biofuels in five major cities, and to gradually reduce or eliminate coal-fired power…It is estimated that coal consumption will be reduced by about 25%, and carbon dioxide emissions will be reduced by 3 to 5%... ... PolyU successfully developed a solar energy car air-conditioning system ... It can effectively reduce gasoline consumption ... It is estimated that about 10 to 40% petroleum can be reduced ... To take minibus as example, 27% petroleum is saved, and 4 tons of carbon dioxide emission can be reduced each year ... …The newly built wind farms in the U.K. can reduce 1.9 million tons of carbon dioxide emissions each year. They produce environmental friendly energy that is beneficial to the environment, and to alleviate global warming… … Rizhao city of Shandong Province will plan to construct wave energy generator … this energy resource is clean and renewable. It can be harmonious with the ecological environment, and are energy resources with high sustainability … … Taiwan is trying to find stable heat sources to develop geothermal power … If a geothermal power plant can be built, it is estimated that it can operate for at least 30 years. Geothermal energy is inexhaustible and the supply will not stop… …Vancouver is ranked the first among green cities in Canada in 2011… It is ranked the first in terms of carbon dioxide emissions and air quality … It implements green energy policy, and uses hydroelectric power as its main power … emissions of sulfur dioxide and nitrogen oxides are low, and air quality is good… Advantages of using renewable energy * Read P.20-21 of the Information Folder: Information Sheet 12 19 Activity 8: Specific example (read P.22-28 of the Information Folder: Information Sheets13-15) Country / Region: ___________________ Energy problems encountered: What kind of renewable energy is used? ___________________ Favorable conditions for developing the above renewable energy: Limitations of using the above renewable energy: Do you think it is a sustainable way to develop the above energy? 20 Extended Activity Discussion: Do you agree with the construction of an offshore wind farm* in Hong Kong? * For information about construction of wind farm in Hong Kong, read P.29-30 of the Information Folder: Information Sheet 16. Summary Advantages of using renewable energy Limitations of using renewable energy 21 There are different limitations and costs for developing renewable energy. So, how about we use nuclear energy? I know that nuclear energy is relatively clean and a small amount of raw material can generate a great capacity of electricity. Siu Chi, I don’t agree with you! Don’t you see the far-reaching impact of the nuclear accident in Fukushima of Japan? I object to the use of nuclear power! Don’t argue any more! Let’s have a class debate to see who is more reasonable! Activity 9: To use “Nuclear” or not? Table 1 Standpoint: Arguments: Questions: 22 Table 2 Note-taking: Table 3: Arguments for and against the use of nuclear power For Against * For information about the nuclear accident in Fukushima of Japan and its relevant information, read P.31-32 of the Information Folder: Information Sheet 17 Summary There are advantages and disadvantages for the development of nuclear power. Each region or country should consider their economic, social and environmental factors carefully before developing nuclear power. 23 D. Meeting future energy demand in a sustainable way Activity 10: Solving energy problem (read P.36-43 of the Information Folder: Information Sheets 18-20) Hong Kong and other countries in the world have adopted different policies and sustainable ways to meet future energy demand. Let’s see what the governments in different places have done! Do you think the energy policy of __________________ sustainable? Why? 24 Activity 11: Be an energy-saving ambassador Besides governments of different countries have the responsibility to develop a sustainable energy policy, as a member of the global village, we need to save energy too. How can you help promote energy saving in school / at home (select one only)? Try to select any one of the following methods to provide recommendations. Present your ideas in front of the class. 1. Writing slogans (limited to a maximum of 2. four sentences) Drawing poster 3. Rewriting the lyrics of a song Designing an advertisement (limited to 5 4. minutes) 25