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Energy is one of the most fundamental parts of our universe We use energy to do work Energy lights our cities Energy powers our vehicles trains planes and rockets Energy warms our homes cooks our food plays our music gives us pictures on television Energy powers machinery in factories Energy is defined as the ability to do work When we eat our bodies transform the food into energy to do work When we run or walk we burn food energy in our bodies When we think or read or write we are also doing work Cars planes trollies boats and machinery also transform energy into work Work means moving something lifting something warming something lighting something All these are a few of the various types of work But where does energy come from There are many sources of energy In this guide we will be looking at the energy that makes our world work Energy is an important part of our daily lives The forms of energy we will look at include Geothermal Energy Fossil Fuels -- Coal Oil and Natural Gas Hydro Power and Ocean Energy Nuclear Energy Solar Energy Wind Energy We will also look at turbines and generators at what electricity is how energy is sent to users and how we can decrease the energy we use Some of the energy we can use is called renewable energy These include solar wind geothermal and hydro These types of energy are constantly being renewed or restored But many of the other forms of energy we use in our homes and cars are not being replenished Fossil fuels took millions of years to create They cannot be made over night And there are finite or limited amounts of these non-renewable energy sources That means they cannot be
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