Keyword Analysis & Research: water cycle definition for class 7

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What is Class 7 science water and water cycle?

Class 7 Science Water and water cycle. Around 70% of the Earth is wrapped in water in the form of ice, seas, oceans, rivers, lakes, ground water and moisture in the surrounding. But large amounts of water is not suitable for man consumption. Only fresh water is fit for human consumption. Means 0.006% of the water is only available for use.

What is the water cycle?

The water cycle is the path that all water follows as it moves around our planet. On Earth, you can find water in all three states of matter: solid, liquid and gas. Liquid water is found in Earth’s oceans, rivers, lakes, streams—and even in the soil and underground. Solid ice is found in glaciers, snow, and at the North and South Poles.

What are the three main parts of the water cycle?

Evaporation, condensation, and precipitation are important parts of the water cycle. However, they are not the only ones. Runoff, for instance, describes a variety of ways liquid water moves across land. Snowmelt, for example, is an important type of runoff produced as snow or glaciers melt and form streams or pools.

What are the factors that assist the water cycle?

There are several factors that assist the water cycle, the sun, air currents to name a few. The stages involved in a complete water cycle are: Stage I: Evaporation and Transpiration The sun’s energy heats up the lakes, rivers, oceans, swamps and other water bodies which subsequently increase the temperature of the water present in them.

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