Class 4 Science Quiz – Chapter 13
Class 4 Science Quiz – Chapter 13 – “A River’s Tale”
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Class 4 Science Quiz – Chapter 13 – “A River’s Tale”
1) What is the chapter about?
The journey of a river
The life of fish
Importance of water plants
How cities use water
2) What is the color of the river where it begins?
Grey
Blue
Brown
Green
3) What can be seen in the river before it reaches the village?
Big ships
Factories
Fish and water plants
All of the above
4) At which places did the color of the water in the river change?
Near the sea
Near factories
Near the village
All of the above
5) Why does the river’s water color change?
Due to natural minerals
Due to fish
Due to pollution from factories and washing
Due to rain
Class 4 Science Quiz – Chapter 13 – Practice test for exam
6) What happens to the fish in some parts of the river?
They increase in number
They die
They change color
They grow bigger
7) What is one reason for fish dying in the river?
Lack of food
Too much water
Pollution
Cold water
8) What do people use river water for?
Washing clothes
Bathing animals
Cleaning utensils
All of the above
9) What makes the river water dirty?
Only factories
Only washing clothes
Various human activities
Natural causes
10) How can water in ponds and lakes become dirty?
Only by rain
Only by animals
Similar reasons as rivers
Natural disasters
Class 4 Science Quiz – Chapter 13 – Check your knowledge
11) What is one way to clean water before drinking?
Freezing
Boiling
Filtering through cloth
Adding flavors
12) What happens when you mix oil in water?
It dissolves
It changes color
It does not dissolve
It evaporates
13) What happens when you mix sugar in water?
It dissolves
It floats
It becomes colored
It freezes
14) Does the color of water always change when something is added?
Yes
No
Sometimes
Only with liquids
15) What should you do if the water looks clean?
Drink it immediately
Boil it before drinking
Use it for washing
Give it to animals
Class 4 Science Quiz – Chapter 13 – Evaluate your learning
16) What is the benefit of boiling water?
Adds minerals
Removes dirt and harmful things
Changes taste
Makes it cold
17) What is the color of clean water?
Always blue
Colorless
Depends on the source
Always white
18) What happens during a flood?
Water level decreases
Water level increases rapidly
Water becomes clean
No change in water level
19) What is the impact of factories on river water?
Makes it cleaner
Adds nutrients
Pollutes it
No impact
20) How do animals affect river water?
By drinking from it
By bathing in it
By adding waste
All of the above
Class 4 Science Quiz – Chapter 13 – Test your skills
21) What is the importance of water plants in a river?
They make water dirty
They provide food and oxygen to fish
They block water flow
They are harmful
22) What is the impact of washing clothes in the river?
Cleans the river
Adds soap and dirt
No impact
Adds color
23) What is the role of a river in a city?
Only for sightseeing
Source of water and transportation
Only for fishing
No role
24) What is the effect of oil in river water?
Makes it clean
Harms aquatic life
Adds nutrients
No effect
25) What did the children learn about the importance of spending time with family?
It creates strong bonds
It is a waste of time
It is only for old people
It is not necessary
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