What is hydrosphere class 7th?

What is hydrosphere class 7th?

Hydrosphere. It is the part of the Earth that contains the water, and it includes oceans, rivers, lakes, clouds, etc. The word hydrosphere is made of two foreign words – hydra meaning water, and sphere, meaning a ball or area.

What are the six stages of water cycle?

The water cycle describes the movement of water on the surface of the earth. Its a continuous process that includes six steps. They are evaporation, transpiration, condensation, precipitation, runoff, and percolation. Evaporation is the process of a liquid turning into gas or water vapor.

Which is not an erosional feature of sea water?

Sea beaches are not the erosional feature of sea waves. They are formed due to the depositional activities of sea waves.

Which is the most important layer of the atmosphere?


Is weather a cycle?

Weather cycles come and go from hot to cold and dry to wet. We adapt to the changes to survive. Climate is the longer term-change that the earth undergoes. Climate folks use a 30-year average as a starting point in looking at climate changes.

What is precipitation class 7th?

Answer: The sun’s heat vaporises water into vapour. This vapour cools down and condenses to become clouds. This may then fall on the surface of Earth in the form of rain, snow or sleet. This phenomenon of water falling back onto the surface of the earth in the form of rain, snow or sleet is called precipitation.

What are the 5 steps of the water cycle?

Together, these five processes – condensation, precipitation, infiltration, runoff, and evapotranspiration- make up the Hydrologic Cycle. Water vapor condenses to form clouds, which result in precipitation when the conditions are suitable.

What are the 7 steps of water cycle?


  • Step 1: Evaporation. The water cycle begins with evaporation.
  • Step 2: Condensation. As water vaporizes into water vapor, it rises up in the atmosphere.
  • Step 3: Sublimation.
  • Step 4: Precipitation.
  • Step 5: Transpiration.
  • Step 6: Runoff.
  • Step 7: Infiltration.
  • For Students:

How are 7th beaches formed?

Answer: The sea waves deposit sediments along the seashores. This results in the formation of beaches. (vii) What are the ox-bow lakes? Answer: When the river enters the plains, it twists and turns forming large bends known as meanders.

What are the four means of transport class 7?

The four major means of transport are roadways, railways, waterways and airways. Communication is the process of conveying messages to others.

What is water cycle for Class 4?

There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection. Let’s look at each of these stages. Evaporation: This is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas).

What do you mean by sea caves?

Sea cave, cave formed in a cliff by wave action of an ocean or lake. Sea caves occur on almost every cliffed headland or coast where the waves break directly on a rock cliff and are formed by mechanical erosion rather than the chemical solution process that is responsible for the majority of inland caves.

What is water cycle in your own words?

The water cycle is a cycle of water which basically renews the water of the atmosphere and then causes rain. The cycle begins with evaporation where the liquid water changes its state to vapor and rises up and undergoes the next process of condensation.

How do you explain the water cycle?

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

What comes first in the water cycle?

The water cycle is the process that re-circulates water so we can have bodies of water as well as clouds and precipitation. The first step of the water cycle is evaporation. About 85% of the water vapor in the air comes from water that evaporated from the oceans. The second step of the water cycle is condensation.

What is dune sand?

A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate.

What is precipitation very short answer?

Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. It is the primary connection in the water cycle that provides for the delivery of atmospheric water to the Earth. Most precipitation falls as rain.

What is the weather cycle?

: periodic recurrence of some feature of the weather.

What is a tsunami Class 7?

Tsunami is a Japanese word that means “Harbour waves” as the harbours get destroyed whenever there is tsunami. The Tsunami of 2004 caused wide spread damage in coastal areas of India. The Indira point in the Andaman and Nicobar Islands got submerged after the tsunami.

How do you introduce the water cycle to students?

7 Ideas for Teaching the Water Cycle

  1. Water Cycle Baggie. This idea is an oldie, but a goodie.
  2. Mini Water Cycle. Save those rotisserie chicken containers!
  3. Oceans and the Water Cycle Notebook Foldable.
  4. Water Cycle Simulation Cubes.
  5. Water Cycle Vocabulary Matching.
  6. Making it Rain.
  7. Water Cycle PowerPoint.

What are the 4 main processes of the water cycle?

There are four main parts to the water cycle: Evaporation, Convection, Precipitation and Collection. Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapour or steam. The water vapour or steam leaves the river, lake or ocean and goes into the air.

What is atmosphere class 7th?

Answer: The blanket of air surrounding the earth is called the atmosphere. The atmosphere primarily comprises nitrogen and oxygen in bulk and other gases like carbon dioxide, helium, ozone, etc in lesser quantities. All living beings on earth depend on the atmosphere for their survival.