Humidity, evaporation, and condensation

During condensation water vapour releases heat while changing into droplets. For exams remember evaporation takes heat and condensation releases heat.

As temperature increases air can hold more water vapour. For exams link warm air with higher moisture capacity.

Water vapour in air changes into droplets on touching the cold surface. For exams use this as a daily life example of condensation.

Water changes into vapour faster from a large open surface. For exams connect open water bodies with more evaporation.

Plants release water vapour through leaves and this is called transpiration. For exams remember it as one source of atmospheric moisture.

Evaporation sends water into the atmosphere as water vapour. For exams remember evaporation near the beginning of the water cycle.

Water vapour condenses in clouds to form droplets. For exams connect droplet formation before rain with condensation.

Dry air has less water vapour so it can take more moisture. For exams connect dry air with faster evaporation.

In humid air evaporation is slow so sweat dries late. For exams connect high humidity with low evaporation.

Saturated air reaches its maximum water vapour capacity so relative humidity is hundred percent. For exams connect saturation with hundred percent.

Dust or tiny particles provide a base for condensation of water vapour. For exams remember the role of tiny particles in cloud formation.

Dew on grass forms when water vapour condenses on a cool surface. For exams treat dew as a direct example of condensation.

Drying of wet clothes happens when water changes into vapour. For exams connect drying with evaporation.

In high humidity evaporation of sweat is slow and the body feels sultry. For exams connect sultriness with high humidity.

Water vapour is a gas so it is generally invisible. For exams remember clouds are tiny droplets not pure water vapour.

Clouds are made of tiny water droplets or ice crystals. For exams treat clouds as visible condensed water.

In condensation water vapour changes into liquid droplets. For exams remember condensation as gas to liquid change.

Solar heat gives energy to change water into vapour. For exams consider the Sun as the main energy source of evaporation.

At night leaves become cool and water vapour condenses on them. For exams connect cold morning with dew formation.

High temperature changes lake water into vapour faster. For exams connect water loss from water bodies in heat with evaporation.