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Candles have been used for lighting since ancient times.
candle, combustion, burning with flame, plasma, combustion product, thermodynamics, fast, wick, wax, flame front, flame, heat release, oxygen, hydrogen, coal, carbon dioxide, water vapour, reaction, physics
Knallgas is the mixture of hydrogen and oxygen. It will explode when ignited.
Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.
This animation demonstrates the construction of a fire engine.
A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.
Surface tension is the property of a liquid that allows it to obtain the smallest surface area possible.
Water is a very stable compound of hydrogen and oxygen, vital for all known forms of life. In nature it occurs in liquid, solid and gaseous state.
A phase transition is the change of a substance from one state of matter to another.