How does air get warmed?

How does air get warmed?

The faster molecules move, the hotter the air. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

Where in the body is air warmed?

Air enters the body through your mouth and nose. The air is warmed, moistened and filtered by mucous secretions and hairs in the nose. The larynx sits at the top of the trachea.

What’s the water cycle in order?

The water cycle consists of three major processes: evaporation, condensation, and precipitation. Evaporation is the process of a liquid’s surface changing to a gas. In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor.

What is it called when warm air expands and rises?

Denser air exerts a higher pressure than less dense air. Denser air flows toward the less dense air just like the clay! This flow of air is called WIND! Air that moves horizontally is called wind. Air that rises is called an updraft.

What happens when air cools?

Because each molecule uses more space for motion, the air expands and becomes less dense (lighter). The opposite effect happens when air cools. As the temperature drops, molecules move more slowly, taking up less room. The amount of space the air takes up shrinks, or reduces the air pressure.

Why is the air near the ceiling the warmest?

Convection is the transfer of heat by the physical movement of hot masses of air. As air is heated, it expands (as do all objects). (This is why the air near the ceiling of a heated room is warmer than that near the floor.)

Why does inhaled air need to be warmed?

As air passes through the nasal cavities it is warmed and humidified, so that air that reaches the lungs is warmed and moist.? The combination of cilia and mucous helps to filter out solid particles from the air an Warm and moisten the air, which prevents damage to the delicate tissues that form the Respiratory System.

How is air warmed in the nasal cavity?

The nasal cavity is lined with epithelial tissue, containing blood vessels, which help warm the air; and secrete mucous, which further filters the air. The endothelial lining of the nasal cavity also contains tiny hairlike projections, called cilia.

What are the 7 steps of water cycle?

It can be studied by starting at any of the following processes: evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff, and storage. Evaporation occurs when the physical state of water is changed from a liquid state to a gaseous state.

Is air affected by temperature?

Temperature, Sunlight, and Humidity. Air temperature affects the movement of air, and thus the movement of air pollution. The warmer, lighter air at the surface rises, and the cooler, heavier air in the upper troposphere sinks. This is known as convection and it moves pollutants from the ground to higher altitudes.