What causes water Vapour to form clouds?

What causes water Vapour to form clouds?

Clouds form when the invisible water vapor in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapor form, so it starts to condense into a liquid or solid form.

What two factors are needed for cloud formation?

Moisture – There must be sufficient water vapor in the air for a cloud to form. Cooling air – The air temperature must decrease enough for water vapor to condense.

What happens when water vapors cool and form clouds?

Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head. And when the water droplets in clouds combine, they become heavy enough to form raindrops to rain down onto your head.

What happens when water vapor is cooled?

When the water vapor cools enough, the attractions between the molecules bring them together. This causes the water vapor to change state and become tiny drops of liquid water. The process of changing from a gas to a liquid is called condensation.

What are clouds How are clouds formed?

Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air.

What causes water to change from a vapor to a liquid?

Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air rises, cools and looses its capacity to hold water vapor. As a result, excess water vapor condenses to form cloud droplets.

Where does the water vapor that makes clouds come from?

Clouds form from water or ice that has evaporated from Earth’s surface , or from plants that give off water and oxygen as a product of photosynthesis. When it evaporates-that is, rises from Earth’s surface into the atmosphere-water is in the form of a gas, water vapor.

What causes water vapor to condense to form clouds?

As it rises, its pressure and temperature drop causing water vapor to condense. Eventually, enough moisture will condense out of the air to form a cloud. Several types of clouds form in this way including cumulus, cumulonimbus, mammatus, and stratocumulus clouds.

When do clouds form from water vapor?

Clouds are formed when water vapor in the air condenses into ice crystals or water droplets at relatively high altitudes or cold areas such as mountain tops. This does not simply occur but it undergoes a distinctive process through the water cycle.

What does water vapor collect around to form a cloud?

The air around us contains moisture in the form of water vapor. Usually a cloud (or fog) forms when the air temperature gets cool enough that the water in the air starts to condense, which means that the water vapor turns into tiny water droplets in the air. The collection of these tiny water droplets make a cloud (or fog) visible to us.