Conduction, Convection, Radiation

Conduction is the transfer of heat through a solid material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

Convection is the transfer of heat by the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a current.

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium and can occur in a vacuum.

The sun causes sunburn through radiation, which is the transfer of heat and energy from the sun to the skin.

Warm air rises in a room due to convection, as it is less dense than cooler air.

When you touch a hot stove, heat is transferred to your skin through conduction.

An example of convection in nature is the formation of wind, where warm air rises and cool air moves in to replace it.

A campfire warms you through radiation, as the heat travels through the air to reach you.

Convection helps cook food evenly in an oven by circulating hot air around the food.

An example of radiation in everyday life is feeling warmth from the sun or a heater without being in direct contact.