vacuum-flask
The vacuum flask keeps your food or drink hot or cold. It was designed in such a way to keep ...
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global-warming
A greenhouse is a small glass building that is used for growing plants to protect them from the cold. Understanding ...
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Convection is the flow of heat in a liquid or gas from a region of high temperature to a region ...
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sun-rays-radiation-min
Radiation occurs when heat transfers from a high temperature region to a lower temperature region without the movement of particles ...
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conduction-2
When heat moves from a region of high temperature to a region of low temperature without the molecules actually moving ...
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