What is contrail for kids?

Contrails are condensation trails (sometimes vapour trails): artificial clouds made by the exhaust of jet aircraft or wingtip vortices which precipitate a stream of tiny ice crystals in moist, frigid upper air.

What is a cirrus cloud in Kid definition?

Cirrus clouds are high, thin, white clouds that are made of ice crystals, and are the fastest moving of all clouds. A cirrus cloud does create precipitation, which is water that falls from a cloud as rain or snow, but that water doesn’t make it to the ground because it evaporates, or changes back into a gas.

What are contrails in clouds?

Contrails (/ˈkɒntreɪlz/; short for “condensation trails”) or vapor trails are line-shaped clouds produced by aircraft engine exhaust or changes in air pressure, typically at aircraft cruising altitudes several miles above the Earth’s surface. Contrails are composed primarily of water, in the form of ice crystals.

How do you explain clouds to kids?

A cloud is made up of millions of tiny water droplets or ice crystals floating together in the air. The air always contains water vapor—water in the form of gas—which is invisible. The amount of water vapor that air can hold depends on the air’s temperature. The cooler the air, the less water it can hold.

What is the purpose of contrails?

The nature and persistence of jet contrails can be used to predict the weather. A thin, short-lived contrail indicates low-humidity air at high altitude, a sign of fair weather, whereas a thick, long-lasting contrail reflects humid air at high altitudes and can be an early indicator of a storm.

What kind of planes leave contrails?

The primary sources of contrails are consistently jet powered aircraft, particularly those with multiple large high bypass ratio engines like those common on modern airliners and business aircraft.

What is a fun fact about cirrus clouds?

Fun Facts About Cirrus Clouds These clouds form at a very high altitude and are made up of ice crystals. This is also why they are so thin. The second fact is that the cirrus cloud is vividly white in color and can stretch up to a long-distance covering the entire length of the sky.

Is there a nimbus cloud?

Nimbostratus clouds are dark, grey, featureless layers of cloud, thick enough to block out the Sun. Producing persistent rain, these clouds are often associated with frontal systems provided by mid-latitude cyclones. These are probably the least picturesque of all the main cloud types.

Are contrails pollutants?

While it is easy to imagine that contrails are just dirty streams of pollutants billowing out of airplanes as they cross the sky, in reality they are mostly ice crystals.

What’s the purpose of contrails?

How do clouds float kids?

Because clouds come from warm air, they have a higher temperature than the air around them. As long as the cloud is warmer than the atmosphere around it, it will float suspended in the sky.

How do contrails affect the climate?

Contrails are a concern in climate studies as increased jet traffic may result in an increase in cloud cover. Several scientific studies are being conducted with respect to contrail formation and their climatic effects. Cirrus clouds affect Earth’s climate by reflecting incoming sunlight and inhibiting heat loss from the surface of the planet.

Where do contrails come from?

Contrails can be found over most of the planet. Now that jet plane traffic, both civilian and military, can be at anyplace over the globe at anytime, contrails are becoming more and more common. This picture was taken by the NOAA-12 satellite as it passed over portions of Europe in 1995.

What do cirrus clouds mean in weather forecasts?

Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours.

What are cirrus clouds made of?

Cirrus clouds are the most common of the high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching.