EVERYDAY SCIENCE

Detailed explanation-1: -Warm air is less dense than cool air, so it rises. Wind is an example of a convection current. Sunlight or reflected light radiates heat, setting up a temperature difference that causes the air to move.

Detailed explanation-2: -Explanation: Convection currents, or the transfer of heat by circulation, continually move air around in the atmosphere. As air is heated, it becomes less dense and rises. Cool air is denser and sinks, flowing in to replace the warm air. This cool air heats and begins to rise, starting the whole process over again.

Detailed explanation-3: -As air warms near the surface of the Earth, or on the first floor of a home, the air molecules move around faster, creating more space between those molecules making the air less dense than the cooler air above it. The warm, less dense air rises while the cooler, more dense air sinks down.

Detailed explanation-4: -Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.