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# Conduction Definition

Conduction transfers thermal energy through direct contact. For example, heating a copper bar melts chocolate bunnies on it.

Grades 6-8 VideoHeat: Transfer of Thermal Energy
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## Heat: Transfer of Thermal Energy

### Fun Facts

• A pot heats on a stove due to conduction.
• A thinner copper rod conducts thermal energy to melt chocolate faster due to fewer atoms.
• Thermal energy is transferred by conduction from the warmer object to the cooler object.

### Why Do We Need To Know About Conduction

Learning about conduction helps us understand how energy moves through different materials. This is important for many reasons. For example, it helps us make clothes that keep us warm by stopping heat from escaping our bodies quickly, like what happens with thick jackets and special blankets.

This idea is also used to make better cooking tools like solar cookers, household items like irons, and to keep electronics from getting too hot. It’s even used in school experiments to explain hard ideas in an easier way. Knowing about conduction is useful in many areas of life.

What is the difference between heat and thermal energy?
Thermal energy is the energy contained within a system due to the motion of the particles. Heat is the transfer of thermal energy from a warmer system/object to a cooler system/object.
When the temperature of an object decreases, what has happened?
The particles (atoms/molecules) that make up that object are moving slower. Heat has been transferred from the object to its surroundings or to another object.
What factors determine the thermal properties of a material?
The amount of material (mass) and its composition (what it’s made of).
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