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Water Cycle Video Lecture | Science Class 6

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FAQs on Water Cycle Video Lecture - Science Class 6

1. What is the water cycle?
Ans. The water cycle, also known as the hydrological cycle, is the continuous movement of water on, above, and below the Earth's surface. It involves processes such as evaporation, condensation, precipitation, and runoff.
2. How does evaporation occur in the water cycle?
Ans. Evaporation occurs when water changes from a liquid state to a gaseous state due to heat energy from the sun. It happens when water bodies, such as oceans, lakes, or rivers, are heated, and the water molecules gain enough energy to escape into the atmosphere as water vapor.
3. What is condensation in the water cycle?
Ans. Condensation is the process in which water vapor in the atmosphere cools down and changes back into liquid form. When the water vapor condenses, it forms tiny water droplets or ice crystals, which then combine to form clouds.
4. How does precipitation occur in the water cycle?
Ans. Precipitation occurs when the condensed water droplets or ice crystals in the clouds become too heavy to remain suspended in the air. This results in the water falling back to the Earth's surface in the form of rain, snow, sleet, or hail, depending on the temperature.
5. What is runoff in the water cycle?
Ans. Runoff refers to the movement of water on the Earth's surface, usually as a result of precipitation. When rainwater or melted snow cannot be absorbed by the soil or vegetation, it flows over the land, forming streams, rivers, and eventually making its way back to the oceans or other water bodies.
99 videos|261 docs|49 tests
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