RECURSOS DE APRENDIZAXE
Mostrando os resultados do 1 ao 2 dun total de 2
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Coal
The educational resource shows information about the coal: coal is a light, black substance which comes from the fossilization of vegetable matter. Coal is used as an industrial fuel, in power stations and in home heating. There are 4 types of coal: anthracite, bituminous coal, lignite and peat.You can see how they are formed in the following animation.
Área de coñecementoContexto educativoTipo de recursoColecciones -
Chemical energy
The educational resource shows information about the concept of chemical energy: chemical energy is what is produced in chemical reactions. An energy cell or a battery possess this type of energy. The gas burning in a cigarette lighter shows how the chemical energy contained in the gas is transformed into light and heat.
Área de coñecementoContexto educativoTipo de recursoColecciones