Help me, no links, no i don't knows. reading science sheet

Heat is a form of energy that moves from hot things to cold things. In other words, heat is energy that flows from objects with a high temperature. Temperature is the average kinetic energy of the particles in an object and is measured using a thermometer.

Heat can move from object to object in three ways. One way that heat flows is called conduction, which occurs when two objects are touching.

In conduction, the particles in the high temperature object are vibrating quickly compared to the low temperature object. When the particles in the high temperature object bump into the particles in the low temperature object, the low temperature object's particles begin to vibrate more quickly. Another form of heat transfer is convection, which occurs in liquids and gases. In convection, the part of the liquid or gas with high temperature is less dense than the part with low temperature so the high temperature parts rise and the low temperature parts sink.

In both conduction and convection, heat is transferred through a material. However, heat energy can also travel through empty space in a third way called radiation, which is how heat travels from the sun to the Earth.

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