Water and Life
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Importance and Uses of Water
SubtopicImportance and Uses of Water under Water and Life for Grade 6 CBSE.
Preview questions (no answers)
- 1.
What is the primary reason animals in a desert can survive with very little water?
A.They do not need water at all
B.They have special features to conserve water
C.They drink sea water
D.They eat only dry sand
- 2.
Which of these is a natural way by which water is added back to the ground?
A.Seepage of rainwater
B.Industrial discharge
C.Evaporation
D.Deforestation
- 3.
Which of the following is a result of excessive rainfall in an area?
A.Drought
B.Flood
C.Water scarcity
D.Earthquake
- 4.
Why do we feel thirsty?
A.Our body has too much water
B.Our body needs more water to function
C.We have eaten too much sugar only
D.It is raining outside
- 5.
Which of the following is a result of low humidity in the air?
A.Wet clothes dry faster
B.Clouds form more quickly
C.It rains more frequently
D.Iron objects rust faster
- 6.
Water is used in a car's radiator primarily to:
A.Help the car run faster
B.Clean the engine from inside
C.Prevent the engine from overheating
D.Lubricate the gears
- 7.
What happens to the salts when seawater evaporates during the water cycle?
A.They evaporate along with the water
B.They are left behind in the ocean
C.They turn into clouds
D.They are converted into fresh water
- 8.
Which of the following is the most significant contributor to the depletion of the water table in modern agriculture?
A.Using hand-pumps for small gardens.
B.Over-extraction of groundwater using high-powered electric tube wells.
C.The natural migration of birds.
D.Planting crops that require very little water.
- 9.
What is 'Aquifer Recharge', and why is it essential for sustainable water use?
A.It is the process of cleaning the water in the ocean.
B.It is the refilling of underground water layers through natural or artificial infiltration of rainwater.
C.It is the process of pumping water from the ground to the sky.
D.It is the creation of new water molecules by combining hydrogen and oxygen.
- 10.
In a closed ecosystem like a terrarium, why does the water level remain constant without adding more water?
A.The plants stop using water when they sense it is a closed system.
B.The water continuously cycles through evaporation, condensation, and precipitation within the container.
C.The soil produces its own water through chemical reactions.
D.The glass of the terrarium turns sunlight into water.
Download the worksheet for Water and Life - Importance and Uses of Water to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
The water cycle is a continuous process that:
A.Has a definite beginning and end
B.Never stops
C.Only happens in summer
D.Only happens in the ocean
- 2.
Which process turns liquid water into steam?
A.Condensation
B.Evaporation
C.Freezing
D.Precipitation
- 3.
Water is essential for which of the following?
A.Only humans
B.Only animals
C.Only plants
D.All living organisms
- 4.
Which of the following is a result of condensation in nature?
A.Puddle drying up
B.Steam coming out of a kettle
C.Fog on a winter morning
D.Melting of an ice cream
- 5.
In the context of the water cycle, what happens during 'Collection'?
A.Water turns into clouds
B.Water falls as rain or snow
C.Water gathers in oceans, lakes, and rivers
D.Water is absorbed by the roots of plants
- 6.
Which of the following will happen if we do not harvest rainwater?
A.It will all be absorbed by concrete roads
B.It will mostly flow away into drains and reach the sea, becoming saline
C.It will remain on the land forever as puddles
D.It will stop raining eventually
- 7.
What is the 'Water Table'?
A.A table used to measure the amount of rainfall
B.The upper limit of the underground zone where soil and rocks are saturated with water
C.The level of water in the oceans
D.A list of all the rivers in a country
- 8.
Which of the following human activities has the most significant impact on the 'Transpiration' part of the water cycle in a region?
A.Paving a large parking lot
B.Large-scale deforestation
C.Building a hydroelectric dam
D.Mining for coal underground
- 9.
How does the 'Water Cycle' help in maintaining the Earth's temperature balance?
A.By reflecting all the sunlight back into space.
B.By distributing heat around the globe through evaporation and precipitation.
C.By turning the Earth's core into ice.
D.By stopping the wind from blowing.
- 10.
Which of the following is a result of the 'Condensation' of water vapor in the atmosphere?
A.Drying of a puddle
B.Formation of dew on a leaf
C.Water soaking into the ground
D.Steam rising from a hot cup of tea
Download the worksheet for Water and Life - The Water Cycle to practice offline. It includes additional chapter-level practice questions.
Conservation of Water and Rainwater Harvesting
SubtopicConservation of Water and Rainwater Harvesting under Water and Life for Grade 6 CBSE.
Preview questions (no answers)
- 1.
What is the result of 'Catch water where it falls'?
A.It causes more floods
B.It helps in rainwater harvesting
C.It makes the sky clear
D.It dries up the wells
- 2.
What do we call the level of groundwater in a particular place?
A.Water bed
B.Water table
C.Water chair
D.Water bench
- 3.
If a farmer uses a sprinkler system instead of flooding the field, they are:
A.Wasting water
B.Conserving water
C.Killing the plants
D.Increasing soil salt
- 4.
Farmers are encouraged to use ________ pipes to prevent water loss through evaporation and seepage.
A.Open mud
B.Underground closed
C.Broken
D.Paper
- 5.
Study the provided flowchart of a dual-purpose rainwater harvesting system. What is the primary role of the component labeled 'Control Valve X'?
A.To filter out the remaining fine sand particles from the water
B.To direct water flow either into the storage tank or the recharge pit based on need
C.To measure the total volume of water collected during a single rainfall
D.To increase the speed of water flow so it reaches the recharge pit faster
- 6.
In a school, a 'Water Auditor' is someone who:
A.Drinks the most water in the class
B.Monitors water usage and identifies leaks or wastage
C.Cleans the water tanks with soap
D.Predicts when it will rain next
- 7.
How does 'Rainwater Harvesting' help in reducing the electricity bill of a housing society?
A.Rainwater produces electricity when it falls on the roof
B.By recharging the water table, the pumps need less energy to lift water from a higher level
C.It replaces the need for any lights in the society
D.The storage tanks act as giant batteries
- 8.
If a city's 'Water Demand' is and its 'Natural Recharge' is , but it harvests of rain, what is the net 'Deficit' from its groundwater reserves?
A.10 units
B.40 units
C.70 units
D.90 units
- 9.
Which of these is the most effective way for an individual student to contribute to water conservation daily?
A.Drinking only half a glass of water when thirsty
B.Using a bucket instead of a hose to wash a bicycle
C.Stopping all plants in the garden from being watered
D.Leaving the tap running to ensure the pipes do not get dry
- 10.
Explain why 'Inter-basin water transfer' (linking rivers) is often debated as a solution to water scarcity.
A.It is too cheap to be taken seriously by scientists
B.It can cause ecological imbalances and lead to the spread of invasive species between different river systems
C.It would make the Earth spin slower due to the weight of moving water
D.Rivers cannot be linked because they all flow in different directions
Download the worksheet for Water and Life - Conservation of Water and Rainwater Harvesting to practice offline. It includes additional chapter-level practice questions.