Flash Cards: Heat Transfer in Nature

Conduction is the process of heat transfer through direct contact between materials, where heat moves from the hotter part to the colder part.

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer parts rise and cooler parts sink.

When a metal spoon is placed in hot soup, the heat from the soup is transferred to the spoon, warming it up.

Materials that allow heat to pass through them easily, like metals (e.g., copper, aluminum).

Materials that do not allow heat to pass through them easily, such as wood, glass, and plastic.

Sea breeze occurs when the land heats up faster than the water during the day, causing cooler air from the sea to move in.

Land breeze occurs at night when land cools faster than the sea, causing cooler air from the land to move towards the sea.

Air traps heat and reduces the heat flow, which is why we wear woollen clothes in winter to stay warm.

Hot air is lighter than cold air. When air inside the balloon is heated, it expands and causes the balloon to rise.

Water conducts heat through convection, where heated water rises and cooler water sinks.

The warmth felt from sunlight on a skin surface is due to radiation, as heat travels through space.

It cools by radiating heat to its surroundings until it reaches room temperature.

The continuous movement of water between the Earth and the atmosphere through processes such as evaporation, condensation, and precipitation.

The process by which water changes from liquid to vapor, often accelerated by heat from the Sun.

Infiltration is the process of surface water seeping into the soil and rocks.

An aquifer is an underground layer of water-bearing rock that can yield water for extraction.

Clay cups are poor conductors of heat, keeping the drink warm longer.

Different materials heat up at different rates. For example, soil heats up faster than water.

Assuming that all materials conduct heat equally; in reality, metals conduct better than insulators.