| OCR Text |
Show Hit It's Energy That Makes A Fire Hot - a complete, set of the World A ady sends Book Encyclopedia to Gary Bower, age 12, of Williamsport, Penn., for big question: Why Is Fir Hot? WE HAVE all played the old guessing game called Animal, Mineral or Vegetable. You can put almost anything you choose in one of these three classes. But in which class would you put fire? We can see it, hear it, feel it and it seems to be a thing. But it is not an animal, not a mineral and certainly not a vegetable. Actually, we could call it an event. It belongs in the world of chemistry where it is called a chemical change. The scientists tell us that everything around us is made of chemicals, even our own bodies. And chemicals are changeable. Two gases can be made to combine and become liquid water. This'ls a cheffil- cal change In which something new is built We turn -- someof the chemicate ur food into energy. This is a chemical change in which something is broken' down. TO MAKE a cake, we mix ingredients and bake them. The mixture will not change into a cake without the heat of the oven. Heat is a form of energy and energy plays a part in every chemical change. A chemical change that builds something new usually uses up energy. A chemical change that breaks something apart usually gives off energy and very often this energy is in the form of heat. Somewhere the green leaves are busy making plant sugar from air and water.- In this chemical change, they use the energy from sunlight. Some of the plant sugar is changed into wood and some of this wood finds its way to the fireplace. As it burns, certain chemicals in the wood are broken down. Remember, the green leaves used water and ga.ses from the air to make the chemicals which later became wood. When the wood burns, it breaks down and. becomes these very same chemicals But remember, the again. leaves also used energy from sunlight. They used an oven to bake their chemical ingreditn-o- - Remodeling your kitchen ? Go OPEN THE DOOR to NEW WAY Total Electric and . . . a WONDERFUL of LIFE Youll step into the future today when you go all the way go all electric in your kitchen. These and otheT flameless electric work savers will give you much more time and energy for your family: cooks an entire meal without attenFlameless electric cooking tion . . and is so dean and safe. whisk away afterFlameless electric dishwasher and disposer meal fuss and muss. cuts food bills and shopFlameless electric ping trips. take the work out of Flameless electric washer and dryer washday. Flaraeless electric water heater provides plenty of hot water anytime, and brings you a special low rate on electricity. freezer-refrigerat- Ask your builder about making your kitchen total electric ... or UTAH POWER TOTAL ELECTRIC HOME & LIGHT CO, ents. WHEN THE chemicals break apart in the fire, this energy is set free. It becomes heat. In the hearth, a chemical change is taking place. The complex chemicals in the wood are breaking apart into more simple chemicals. In the heat which is set free, some of the gases blaze tip in dancing flames. The wood for the fireplace is fuel. Coal and gas are also fuels and so is the gasoline we1 put into a car. These fuels were made long ages ago but they too were made by green leaves from air, water and sunshine. Coal is the buried remains of ancient forests. Kitchen gas and gasoline is formed from the bodies of little sea dwellers who fed on scraps of ancient . seaweeds. These fuels were put . together . by chemical changes and the energy used was stored within them through the ages. When they burn, they break apart and this chemical change releases their energy as heat. The Salt Lake Tribune Home Magazine |
