मराठी

Construct a crossword puzzle of your own using the keywords.

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प्रश्न

Construct a crossword puzzle of your own using the keywords.

थोडक्यात उत्तर
तक्ता
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उत्तर

Across:

  1. Essential for human survival, found in rivers, lakes, and oceans.
    Answer: Water (1 Across)
  2. A natural source of water flows towards an ocean, a lake, or another river.
    Answer: River (4 Across)
  3. The process by which water vapour becomes liquid.
    Answer: Condense (5 Across)
  4. A large natural body of water surrounded by land.
    Answer: Lake (7 Across)
  5. Underground layer of water-bearing rock.
    Answer: Aquifer (8 Across)

Down:

  1. The continuous movement of water on, above, and below the surface of the Earth.
    Answer: Cycle (1 Down)
  2. Frozen water falling from the sky in flakes.
    Answer: Snow (2 Down)
  3. The solid form of water.
    Answer: Ice (3 Down)
  4. The largest body of saltwater covers most of the Earth's surface.
    Answer: Ocean (6 Down)
  5. Tiny droplets of water suspended in the atmosphere form clouds.
    Answer: Vapor (9 Down) Filled crossword Grid

Filled crossword Grid:

Here is the filled grid based on the answers:

Explanation:

  • 1 Across (Water): Essential for human survival.
  • 4 Across (River): Natural source flowing towards larger bodies.
  • 5 Across (Condense): Process of vapour becoming liquid.
  • 7 Across (Lake): Large natural body of water.
  • 8 Across (Aquifer): Underground water-bearing rock.
  • 1 Down (Cycle): Continuous movement of water.
  • 2 Down (Snow): Frozen water in flakes.
  • 3 Down (Ice): Solid form of water.
  • 6 Down (Ocean): The largest body of saltwater.
  • 9 Down (Vapor): Tiny droplets in the atmosphere.
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पाठ 13: Wastewater Story - Activities and Projects [पृष्ठ १६५]

APPEARS IN

एनसीईआरटी Science [English] Class 7
पाठ 13 Wastewater Story
Activities and Projects | Q 1. | पृष्ठ १६५

संबंधित प्रश्‍न

Why do organisms need water?


 Match the statements in column A with that in column B.

 Column A  Column B
 (a) deliquescent substance (1) sodium bicarbonate
 (b) hygroscopic substance (2) magnesium chloride
 (c) efflorestance substance (3) conc. sulphuric acid
 (d) substance causing temporary hardness (4) washing soda

Answer the following question.
Suggest three ways to conserve water.


Explain why rivers and lakes do not freeze easily.


What is the composition of water? In what volume its elements combine?


What do you understand by Temporary hardness?


Why is it said that seawater is useful even though it is not potable? 


Give a reason why alcohol and water form a miscible mixture while oil & water do not.


Give the importance of dissolved minerals & salts.


Select the correct answer of the following statement:

A solution which can pass through a filter paper but not through a semipermeable membrane.


Give a balanced equation for the following conversion:

Sulphur dioxide to sulphurous acid using a neutral liquid.


Name a deliquescent substance’.


Give the influence of pressure.


If, at some place, it did not rain for a very long period of time, what would be its effect on the life of the people there?


Water levels in rivers increase greatly during ______.


Match the following

1. Flood Lake
2. Surface water Evaporation
3. Sunlight Water vapour
4. Cloud Pole
5. Frozen water Increased rainfall

From where do the following usually get water? In which form is water present in them?

Plants


Fill in the blanks in the following statements using words given in the box.

air, handpumps, cholera, water, large, ground

A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.


Wells are fed by ______.


Fill in the blanks selecting words from the following list

snow, rain, clouds, vapour, evaporation, transpiration.

Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.


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