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Water Cycle Video Lecture - Science for Grade 7
FAQs on Water Cycle
| 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.
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Apr 19, 2026 Last updated
Video Description: Water Cycle for Grade 7 2026 is part of Science for Grade 7 preparation. The notes and questions for Water Cycle have been prepared according to the Grade 7 exam syllabus. Information about Water Cycle covers all important topics for Grade 7 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Water Cycle.
Introduction of Water Cycle in English is available as part of our Science for Grade 7 for Grade 7 & Water Cycle in Hindi for Science for Grade 7 course. Download more important topics related with notes, lectures and mock test series for Grade 7 Exam by signing up for free.
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Video: Water Cycle of Science have been curated by the Grade 7 experts, helping you revise the topic quickly for exam preparation. Watch on EduRev.
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Here you can find the meaning of Water Cycle defined & explained in the simplest way possible. Besides explaining types of Water Cycle theory, EduRev gives you an ample number of questions to practice Water Cycle tests, examples and also practice Grade 7 tests.
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