Explain the life cycle of a star to the mirror/ your mom using the diagram in your book/ drawn., Check your book/ diagram., What is a renewable resource?, A resource that nature replaces before we use it up, so we can use it again and again. Like wind, sun and water., What is a non-renewable resource?, A resource that can run out because it takes a very long time to replace. Like coal, oil and natural gas., What is the biggest difference between renewable and non-resources?, Its replenish rate and supply limit. Renewable resources can naturally be replaced, while non-renewable sources are limited and can run out., Why do you think people are tying to use more renewable energy? Give 2 reasons., People use renewable energy because these resources never run out, they keep the air and water clean, and they help stop global warming., How can non-renewable resources generate electricity?, Fossil fuels (coal /oil) is burnt to create heat which is in turn used to make steam to drive turbines which generate electricity., Are these renewable or non-renewable resources?, non-renewable resources, Are these renewable or non-renewable resources?, renewable resources, Give THREE examples of renewable energy sources., Wind, sunlight (solar) and water (hydroelectricity)., Name THREE non-renewable energy sources., Coal, natural gas and oil., Why are fossil fuels considered non-renewable?, They take millions of years to form, so they cannot be replaced quickly once they are used., What is one major environmental problem caused by burning fossil fuels?, Burning fossil fuels releases pollution and greenhouse gases into the atmosphere, contributing to climate change., What type of energy does a wind turbine use?, Wind energy., What happens when the wind blows against the blades of a wind turbine?, The blades spin, which turns the turbine and helps make electricity., What is a wind farm?, An area where many wind turbines are placed together, usually over a large area of land., What does the wind turbine turn?, A generator., What does the generator do? (wind energy), It converts the movement/energy from the turbine into electricity., Give TWO advantages of wind energy., It is renewable. It produces no pollution while generating electricity., Give TWO disadvantages of wind energy., Wind turbines can be expensive to set up. They need strong winds., Why can't wind turbines generate the same amount of electricity all the time?, Because the amount of electricity produced depends on how much wind is available., What is solar energy?, Energy from the Sun., What does a solar panel do?, It captures energy from the Sun and converts it into electricity or heat., Why do solar panels need to be positioned carefully?, So that they can catch as much sunlight as possible., What is one disadvantage of solar energy?, Solar panels are expensive. Can't be used in areas with little sun., What is hydroelectric power?, Electricity generated using the energy of moving or falling water., Give TWO disadvantages of hydroelectric power., Dams are expensive to build. Flooding can destroy wildlife habitats and land., What is pumped storage hydropower?, A system that stores energy by pumping water uphill into a reservoir so it can later flow downhill and generate electricity., What are greenhouse gases?, Gases in the atmosphere that trap heat and contribute to the warming of Earth., What can burning fossil fuels release into the atmosphere?, Greenhouse gases and other pollutants., What does the word "sustainable" mean?, Something that can continue for a long time without using up resources or causing serious harm to the environment., Why are renewable energy sources considered more sustainable than fossil fuels?, Renewable energy sources are naturally replaced and generally produce less pollution and fewer greenhouse gases., A word that means indefinitely reliable is, SUSTAINABLE, Gases in the atmosphere that reflect heat back down are called ______ gases., GREENHOUSE, The spinning Earth and the sun's heat generate ______., WIND, Fossil fuels are ______ sources of energy., NON-RENEWABLE, Solar panels ______ the sun's energy to a form we can use., CONVERT, Currently the fastest growing source of renewable energy., SOLAR, Geothermal energy harnesses energy from decaying ______., ATOMS, The ______ is a source of renewable energy., SUN, Solar panels convert the energy from photons into ______., ELECTRICITY, ______ can never be created or destroyed., ENERGY, This fossil fuel is used in many vehicles., GASOLINE, This energy is generated from decaying uranium atoms in the Earth's core., GEOTHERMAL, This is generated at dams., HYDROELECTRICITY, These are used to capture solar energy., PANELS, Three ways to cut down on fossil fuels are to reduce, reuse, and ______., RECYCLE, This is a source of renewable energy., WATER, These energy sources produce no greenhouse gases., RENEWABLE, The blades of this capture some of the wind's energy., TURBINE, This means “buried.”, GEO, Biomass captures energy from the sun that is stored in decomposing ______., PLANTS

NST Term 3 Test

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