Churchmead Design Technology Name: Date: Fossil Fuels 3.1.2 Energy generation and storage Fill in the gaps FOSSIL, BURIED, LIGHT, CHEMICAL, SEDIMENT, COAL, PLANTS, NATURAL GAS, PHOTOSYNTHESIS, CREATURES, MILLIONS, OIL, SEA The Sun produces a great deal of ________ energy and heat energy. Some of this reaches the Earth. _____________ can trap this energy and change it by a process called ___________________. Some of the energy becomes locked in them, in the form of _____________ energy. Over many years, loads and loads of plants grew. Some were ______________ underground. Their energy became trapped as they were turned into _______________. _____________ that fed on the plants fell to the bottom of the ________. They were buried under ____________ and chemical changes occurred to make ____________ and ______________. We call fuels formed from living things in this way ______________ fuels. . The problem with fossil fuels: Burning too many fossil fuels leads to environmental problems; Acid rain is caused by _________ in fossil fuels reacting with oxygen in the air to form sulphur dioxide Global warming is caused by carbon in fossil fuels reacting with oxygen in the air to form ______________. Can you think of any other problems? Churchmead Design Technology

Churchmead Design Technology Name: Date: Energy Sources 3.1.2 Energy generation and storage Match up the sources to their advantage and disadvantages Advantages Disadvantages No CO2 or other air pollutants Easy installation Low maintenance Little environmental impact when located on buildings No fuel cost Unreliable as sunlight varies depending on weather, time of day and time of year Require a large surface area Reliable Can affect wildlife and natural water flow Can only be located in suitable places Britain is surrounded by sea Can affect marine life Can be a threat to birds and bats Large and noisy Unreliable Easily available renewable source Release CO2 Expensive Large amount of land needed Can produce large amounts of electricity from a small amount of fuel Expensive to build Large amount of CO2 released during construction and decommissioning Waste remains radioactive for thousands of years Can be very dangerous if things go wrong such as in Chernobyl. Cheap (for now) Easy to use Will run out someday Releases CO2 and other air pollutants Prices are rapidly increasing Fossil Fuel Solar Hydro Wind Tidal Biomass Nuclear Churchmead Design Technology