Hydrologic cycle
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The hydrologic cycle describes the continuous movement of water on, above, and below the surface of the Earth. Water is evaporated from bodies of water by the sun's energy, rises into the atmosphere as water vapor, condenses to form clouds, and falls back to the Earth's surface as precipitation onto land and oceans, where some is absorbed by plants and soil, some runs off into streams, rivers, lakes, and oceans, and some infiltrates and replenishes groundwater stores. This constant movement of water driven by energy from the sun is known as the water or hydrologic cycle and is essential to supporting life on Earth.
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The document discusses the hydrosphere and the hydrologic cycle. It can be summarized as:
The hydrosphere refers to all water on Earth, including oceans, freshwater, ice, and water vapor in the atmosphere. Water is essential for life and exists in liquid form between 0-100 degrees Celsius. The hydrologic cycle is the continuous movement of water on, above, and below the surface of the Earth, including evaporation, transpiration by plants, condensation into clouds, precipitation, and runoff into lakes, rivers, and groundwater. This cycle is driven by energy from the sun and Earth's gravity.
Module 5 - Physical Science
The document discusses the hydrosphere and the hydrologic cycle. It can be summarized as:
The hydrosphere refers to all water on Earth, including oceans, freshwater, ice, and water vapor in the atmosphere. Water is essential for life and exists in liquid form between 0-100 degrees Celsius. The hydrologic cycle is the continuous movement of water on, above, and below the surface of the Earth, including evaporation, transpiration by plants, condensation into clouds, precipitation, and runoff into lakes, rivers, and groundwater. This cycle is driven by energy from the sun and Earth's gravity.
Hydrology
The water cycle describes the continuous movement of water on, above and below the Earth's surface through various physical processes. Water evaporates from oceans, lakes, and vegetation into the atmosphere. It condenses to form clouds and precipitates as rain or snow. Precipitation may fall directly into water bodies, be intercepted by plants, infiltrate soils, or become surface runoff into streams, contributing to the total streamflow or base flow. Water is stored temporarily in the atmosphere, oceans, lakes, soils, aquifers and glaciers before repeating the cycle.
Water cycle - class 8. Pptx ( Monalisa )
The document discusses the water cycle, which is the continuous movement of water on, above, and below the surface of the Earth. It involves processes like evaporation, transpiration, condensation, precipitation, infiltration, and surface runoff that circulate water between the oceans, atmosphere, and land. Evaporation transfers water from surfaces to the atmosphere, transpiration releases water vapor from plant leaves, condensation changes water vapor to liquid water in clouds, and precipitation deposits water in the form of rain, snow, or hail. Infiltration moves water underground and surface runoff carries water over land surfaces. The water cycle is essential for sustaining all life by recycling fresh water supplies.
Water cycle
The document summarizes the water cycle, which is the continuous movement of water on Earth between the atmosphere and the land/oceans. Water evaporates from bodies of water and plant leaves into the atmosphere, condenses to form clouds, and precipitates back down to Earth as rain, snow, or hail, where it collects in streams and rivers that eventually flow back to the oceans, completing the cycle. The water cycle involves the processes of evaporation, condensation, transpiration by plants, and precipitation.
Rainwater
Rainwater is the primary source of fresh water globally and provides suitable conditions for diverse ecosystems. It also enables hydroelectric power and plant/crop irrigation. Rainwater contains salt, water, nitric acid, sulfuric acid, and carbon. It goes through the hydrological cycle of evaporation, condensation, precipitation, and infiltration/runoff. Evaporation turns water into vapor which rises and condenses into clouds. Rain falls from clouds through precipitation and infiltrates the ground or runs off via rivers/lakes back to the oceans to complete the cycle.
Water cycle
The water cycle describes the continuous movement of water on, above and below the Earth's surface through various stages. Water evaporates from the land and ocean surfaces into water vapor in the air, where it condenses to form clouds and precipitates as rain or snow back to the ground. Some processes in the water cycle include evaporation, condensation, precipitation, transpiration from plants, and surface runoff of water from land into streams, rivers and lakes. The solar-powered water cycle is crucial for replenishing fresh water on Earth and regulating its temperature.
Water cycle
The water cycle describes the continuous movement of water on, above, and below the Earth's surface. Water exists as a liquid, vapor, and solid states as it moves through the water cycle, which includes processes like evaporation, condensation, precipitation, and runoff. The sun drives evaporation of water from sources like oceans, lakes, and soil into water vapor in the atmosphere, which then condenses to form precipitation like rain, snow, hail, or fog that falls back to the Earth's surface, completing the cycle.
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Hydrologic cycle
- 2. Water never leaves the earth. It is constantly being cycled through the atmosphere, ocean and land. This process, known as the water cycle, driven by the energy from the sun. The water cycle is crucial to the existence of life on our planet.
- 4. Hydrologic Cycle deals with the origin and distribution of water on the globe. Complex pathway include passage of water from gaseous stage in the atmosphere to oceans, rivers, lakes etc.
- 6. The water cycles composed of many parts…..
- 7. Hydrological Cycles include the following processes…… Evaporation Condensation Precipitation Interception Infiltration Percolation Transportation Runoff Storage
- 8. EVAPORATION Evaporation occurs when water changes from liquid state to gaseous state. Evaporation occurs on water surfaces like lakes, seas etc. Evaporated moisture is lifted into atmosphere, but, some vapour always exists in the atmosphere.
- 9. CONDENSATION Condensation is the process by which water vapour changes into water. Water vapour condenses to form dew, fog or clouds Condensation takes place due to cooling of air.
- 10. PRECIPITATION Precipitation is the process that occur when water particle fall from the atmosphere and reach the ground. Precipitated water may fall into water bodies or on land. It can then go to streams or penetrate into the soil. When the water in the clouds gets too heavy, the water falls back to the earth.
- 11. INTERCEPTION Interception is the process of interrupting the movement of water in the chain of transportation events leading to streams. Leaves and other materials spreads over the surface or collects at points of edges.
- 12. INFILTRATION Infiltration is the physical process involving movement of water through the boundary area where atmosphere interfaces with the soil. Infiltrated water and water stored in the soil, can become subsurface runoff.
- 13. PERCOLATION Percolation is the movement of water through the soil due to Gravity and by capillary forces. All ground water originates as subsurface water.
- 14. TRANSPIRATION Transpiration is the biological process that occurs mostly in the day. Water inside plants is transferred to the atmosphere as water vapour. Only a small portion of water is retained by the plants.
- 15. RUNOFF Runoff is a flow from a drainage basin in surface streams. It generally consists of the flow that is unaffected by artificial diversions or storages.
- 16. STORAGE There are three basic water storage places: In atmosphere, on earth’s surface and in the ground. Surface storage places are: ocean, lake, reservoirs, glaciers. Underground storage occurs in soil, in the cracks of rocks etc.
- 18. FLOODS & DROUGHTS Uneven distribution and movement of water can cause extreme phenomena such as Floods and Droughts