Extra 30 short questions and answers for Chapter:14 Water of Class 6 Science (CBSE):-
What are the three states of water?
Answer:
Water exists in three states:
Solid (ice)
Liquid (water)
Gas (water vapor)
What is evaporation?
Answer:
Evaporation is the process in which liquid water changes into water vapor due to heat.
What is condensation?
Answer:
Condensation is the process in which water vapor cools down and changes into liquid water.
What is precipitation?
Answer:
Precipitation is the process in which water falls back to Earth in the form of rain, snow, or hail.
What is the water cycle?
Answer:
The water cycle is the continuous movement of water on Earth through evaporation, condensation, and precipitation.
How does water become groundwater?
Answer:
Water seeps into the ground through soil and rocks, filling underground spaces to form groundwater.
What is transpiration?
Answer:
Transpiration is the process in which plants release water vapor into the air through their leaves.
How does water pollution occur?
Answer:
Water pollution occurs when harmful substances like chemicals, plastic, and sewage mix with water bodies.
Why is water important for living beings?
Answer:
Water is essential for drinking, digestion, plant growth, temperature regulation, and many life processes.
What are the sources of fresh water?
Answer:
Freshwater sources include rivers, lakes, ponds, glaciers, and underground water (wells and springs).
What is potable water?
Answer:
Potable water is clean and safe drinking water, free from germs and harmful chemicals.
How can we purify water at home?
Answer:
Water can be purified by boiling, filtration, and using purifiers or chlorine tablets.
What is rainwater harvesting?
Answer:
Rainwater harvesting is the process of collecting and storing rainwater for future use.
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What is infiltration?
Answer:
Infiltration is the process in which water seeps through the soil and reaches underground layers.
Why should we conserve water?
Answer:
Water conservation is necessary to prevent water shortages, protect ecosystems, and ensure future supply.
How does deforestation affect the water cycle?
Answer:
Deforestation reduces transpiration and rainfall, leading to dry conditions and water scarcity.
What are the main causes of water scarcity?
Answer:
Water scarcity is caused by overuse, pollution, deforestation, climate change, and poor water management.
What are the effects of water pollution?
Answer:
Water pollution causes diseases, kills aquatic life, and makes water unfit for drinking and agriculture.
Why do coastal areas have more humidity?
Answer:
Coastal areas have more humidity because of continuous evaporation from the sea.
What is the difference between surface water and groundwater?
Answer:
Surface water
is found in rivers, lakes, and ponds.
Groundwater
is stored underground in wells and aquifers.
What are some ways to conserve water at home?
Answer:
Water can be conserved by fixing leaks, turning off taps when not in use, using rainwater, and recycling water.
What is the importance of the monsoon season in India?
Answer:
The monsoon provides most of India's rainfall, which is essential for agriculture, drinking water, and hydroelectricity.
How do clouds form?
Answer:
Clouds form when water vapor rises, cools down, and condenses into tiny water droplets.
Why do wet clothes dry faster on a sunny day?
Answer:
Wet clothes dry faster on a sunny day due to increased evaporation caused by heat.
How does water help regulate body temperature?
Answer:
Water helps in cooling the body through sweating and maintains temperature balance.
What happens when water vapor cools down?
Answer:
When water vapor cools down, it condenses into tiny water droplets to form clouds or dew.
Why does ice float on water?
Answer:
Ice floats on water because it is less dense than liquid water.
What are some common uses of water?
Answer:
Water is used for drinking, cooking, bathing, irrigation, and generating electricity.
How can industries reduce water pollution?
Answer:
Industries can reduce water pollution by treating wastewater before releasing it and using eco-friendly chemicals.
What will happen if the water cycle stops?
Answer:
If the water cycle stops, rainfall will cease, causing droughts, loss of drinking water, and destruction of ecosystems.
