How Do Clouds Defy Gravity?

Why clouds are not falling down?

Water is not lighter than air – water does not float.

So why don’t clouds fall out of the sky.

The two biggest reasons that clouds stay in the sky are 1) small drops, and 2) wind.

Because small drops have less mass and more surface area than large drops, they have a harder time pushing the air out of the way..

Why do clouds turn GREY?

When clouds are thin, they let a large portion of the light through and appear white. But like any objects that transmit light, the thicker they are, the less light makes it through. As their thickness increases, the bottoms of clouds look darker but still scatter all colors. We perceive this as gray.

What do black clouds mean?

A normal day without rain should have a sky with mostly white or light gray clouds. But dark gray or blackish clouds before sunset suggests that the clouds are getting too heavy with droplets and could soon start to rain.

How do clouds help us?

Clouds play an important role in both warming and cooling our planet. Clouds give us a cooler climate on Earth than we would enjoy without clouds. … But it’s a bit complicated: Clouds can both cool down and warm up the temperatures on Earth. Clouds can block light and heat from the Sun, making Earth’s temperature cooler.

How do clouds hold so much rain?

Inside the cloud, cooler temperatures have transformed water vapor into a liquid. … To fall to Earth, cloud droplets have to become heavier. If they combine with other droplets or if more liquid water continues to condense out of the air, they eventually become heavy enough to form drops that fall to Earth as rain.

What is the heaviest cloud?

cumulus cloudResearchers have calculated that the average cumulus cloud – which is that nice, white fluffy kind you see on a sunny day – weighs an incredible 500,000 kg (or 1.1 million pounds!).

How do clouds weigh so much?

Just as oil floats on water because it is less dense, clouds float on air because the moist air in clouds is less dense than dry air. … The weight of the water droplets in the cloud. The weight of the water droplets plus the weight of the air (mostly above the cloud, pressing down)

Can we stand on clouds?

Although we can’t really touch clouds you could walk through one. In fact that’s what fog is: a cloud that’s formed close to the ground instead of high in the sky. We can’t touch fog but we can move through it. … Clouds can hold a lot of water droplets; some are so large that they contain millions of tons of water!

Are all clouds white?

It’s pretty well-known that most clouds are white, while rain clouds are usually a darker shade of gray.

What happens when clouds get too heavy?

Water vapor turns into clouds when it cools and condenses—that is, turns back into liquid water or ice. … In the cloud, with more water condensing onto other water droplets, the droplets grow. When they get too heavy to stay suspended in the cloud, even with updrafts within the cloud, they fall to Earth as rain.

Do clouds smell?

The cloud is a complex mix of gases but hydrogen sulphide – the unmistakable stink of rotten eggs – provides the key note.

What if the clouds fell?

No, really: imagine if Earth’s atmosphere collapsed. … All the oxygen, nitrogen and other stuff in Earth’s atmosphere has a whopping combined mass of 5 quadrillion tons, so a falling sky would mean that nearly 10 tons of molecules — roughly the heft of a school bus — would drop on every square meter of Earth’s surface.

What keeps the clouds in the sky?

Clouds form when warm wet air rises and condenses in cold air. … Water droplets in air behave the same way as dust6. The second reason that clouds can float in the air is that there is a constant flow of warm air rising to meet the cloud: the warm air pushes up on the cloud and keeps it afloat.

Is fog a cloud?

Clouds can form at many different altitudes. They can be as high as 12 miles above sea level or as low as the ground. Fog is a kind of cloud that touches the ground. Fog forms when the air near the ground cools enough to turn its water vapor into liquid water or ice.

Do clouds disappear in rain?

Clouds are not containers of water so that it goes empty after it rains. … When the saturation point of cloud is reached, ie by the amount of water vapor it can hold, it condenses to form water droplets which precipitates as rains. Once all the water present in the clouds are precipitated then there will be no clouds!

Are clouds hot or cold?

Clouds consist of microscopic droplets of liquid water (warm clouds), tiny crystals of ice (cold clouds), or both (mixed phase clouds). Cloud droplets initially form by the condensation of water vapor onto condensation nuclei when the supersaturation of air exceeds a critical value according to Köhler theory.

Why are clouds white?

Clouds are white because light from the Sun is white. As light passes through a cloud, it interacts with the water droplets, which are much bigger than the atmospheric particles that exist in the sky. … But in a cloud, sunlight is scattered by much larger water droplets.

Do GREY clouds means rain?

When the cloud drops become big enough, they stop a lot of light and the cloud looks very dark and grey. When enough drops stick together, they become big enough to fall to the ground as drops of rain.