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When air is warmed up, its molecules move faster and faster and as a result they move further from each other. They still have the same mass, but they now occupy a larger volume. This means that its density is smaller.
The opposite when air is cooled off. The molecules slow down, get closer together, occupy a smaller volume and therefore its density is bigger.
When air is warmed up, it goes up. Once it's up there, is cools off and goes back down. Near the heated surface the air gets warmed up again, goes up, cools down, goes back down, and again and again.
That's called a convection cell.
What else can I help you with?
What happens to air pressure as you move away from earths surface?
Air pressure decreases as you move away from Earth's surface. This is because the weight of air above you becomes less as you move higher in the atmosphere, resulting in lower air pressure at higher altitudes.
How does atmospheric pressure change as you move away from the surface of earth?
Atmospheric pressure decreases as you move away from the surface of the Earth. This is because the weight of the air above you decreases with higher altitudes, resulting in lower atmospheric pressure.
Why is air pressure greatest at the Earth's surface (the Troposphere answer?
Air pressure is greatest at the Earth's surface, particularly in the troposphere, due to the weight of the air above pressing down on it. The air molecules are denser near the surface because gravity pulls them closer to the Earth, resulting in higher pressure. As you move higher in altitude, there are fewer air molecules above, leading to a decrease in pressure.
As the earth is heated by the sun bubbles of rise blank blank upward from the warm surface?
As the earth is heated by the sun, bubbles of air rise upward from the warm surface.
Why is air preassuare greastest at the earths surface?
Air pressure is greatest at the Earth's surface because the weight of the air above exerts a force on the air below. As you move higher in the atmosphere, there is less air above pushing down on you, so the pressure decreases. At higher altitudes, there are fewer air molecules, resulting in lower air pressure.
What direction does air above a heated surface move?
in a upward motion
How does air above a cold surface?
how does air above cold surface move
How does sunlght affect the desert?
Sunlight is absorbed by the surface of the desert and the surface is heated. The surface, in turn, heats the air above the desert.
How is air heated by conduction?
Air is heated by conduction when it comes into direct contact with a warmer surface, such as the ground or a heated object. The heat energy is transferred from the surface to the air molecules through direct contact, causing the air molecules to gain kinetic energy and move faster, increasing the air temperature.
How does heat move between the earth's surface and the air above it?
POOOOOOP
What happens to air pressure as you move higher above the earth surface?
The air is thinner the higher you go.
What happens to air pressure as you move higher above earths surface?
The air is thinner the higher you go.
How does air above a cooled surface move?
Air above a cooled surface tends to sink as it becomes denser and cooler. This creates a downward flow of air which then spreads out horizontally, creating a circulation pattern known as a cold air drainage.
How does the number of particles in the air change as you move higher above the earth's surface?
1000
The air just above the ground is heated by what from the ground?
The air just above the ground is typically heated by conduction, as the ground absorbs heat from the sun and transfers it to the air molecules in direct contact with the ground surface. This process creates warm air near the surface, which then rises due to its lower density compared to the surrounding cooler air.
What does sunlight do in the desert?
Sunlight is absorbed by the surface of the soil which is heated. The soil then radiates that heat to the air above it, raising the temperature of the desert.
Why do heated air masses above the equator move north and south to cooler areas?
Heated air masses above the equator and is moved due to the rotation of the earth on it's axis. This actual helps to deflect the movement of air over diffrent parts of the planet creatomg global patterns of prevailing winds distributing heat and moisture in the atmosphere.
