EVERYDAY SCIENCE

Detailed explanation-1: -Energy from the sun and the force of gravity drive the continual movement of water between pools. The sun’s energy causes liquid water to evaporate into water vapor. Evapotranspiration is the main way water moves into the atmosphere from the land surface and oceans. Gravity causes water to flow downward on land.

Detailed explanation-2: -Like evaporation, condensation is also influenced by the sun. As water vapor cools, it reaches its saturation limit, or dew point. Air pressure is also an important influence on the dew point of an area. As is the case with evaporation and condensation, precipitation is a process.

Detailed explanation-3: -The sun’s energy is the driving force behind the water cycle. The sun heats up water on land and in the oceans, lakes, and seas. The water changes from liquid to vapor in a process called evaporation. The water vapor cools and in a process called condensation forms droplets in the atmosphere.

Detailed explanation-4: -Gravity makes it flow downhill, off your roof, into creeks, down rivers and even over giant waterfalls. Some water sinks into the ground, but most of it ends up filling the oceans, which cover over two-thirds of the planet.