energy and our planet.pptx

Energy and our planet;potential energy 势能 kinetic energy 动能 Renewable 可更新的 Nuclear 核的 Geothermal 地热的 Biomass 生物质 Fusion 核聚变 Fission 核裂变 Hydroelectric power[?ha?dr????lektr?k ?pau?] 水力发电 impurities 杂质 evaporate 使…变为蒸汽 ;;Water energy;葛洲坝;Tidal Generating 潮夕发电; Water Resource Use Large quantities of water are frequently needed to remove impurities from coal at the mine. In addition, coal-fired power plants use large quantities of water for producing steam and for cooling. When coal-fired power plants remove water from a lake or river, fish and other aquatic life can be affected, as well as animals and people who depend on these aquatic resources. ;How to save energy？; …ride our bicycles instead of driving cars or riding buses… …try to use our air conditioner less during the summer months… …Turn off the lights when you leave the room…;Apart from these, we can also make contributes to energy-saving by using our brains.;Water recycling flower pot;Combined hand washing basin and toilet;the washing machine which need you to run up;/v_show/id_XMjY0NTcyODc2.html;Energy and our planet ---- Solar Energy; Solar Energy -- Energy from the Sun; Solar Energy -- Energy from the Sun;The major disadvantages of solar energy are: The amount of sunlight that arrives at the earths surface is not constant. It depends on location, time of day, time of year, and weather conditions. Because the sun doesnt deliver that much energy to any one place at any one time, a large surface area is required to collect the energy at a useful rate. ;位于塞维利亚附近的太阳能发电站 The biggest solar power plant device in Europe ;SOLAR ENERGY AND THE ENVIRONMENT Solar energy is free, and its supplies are unlimited. Using solar energy produces no air or water pollution but does have some indirect impacts on the environment. For example, manufacturing the photovoltaic cells used to convert sunlight into electricity, consumes silicon and produces some waste products. In addition, large solar thermal farms can also