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Class 8 Science Chapter 1 The Invisible Living World: Beyond Our Naked Eye MCQ Practice

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Chapter 1The Invisible Living World: Beyond Our Naked Eye
121 MCQsFocused chapter practice
DescriptionQuick chapter overview
SyllabusTopics covered clearly

Master the essentials of The Invisible Living World: Beyond Our Naked Eye in Class 8 Science through purposeful MCQs. Connect scientific ideas with observation, reasoning and practical application and turn revision into stronger exam performance.

This chapter introduces microorganisms and the hidden living world beyond direct vision. Students learn about tiny organisms, their presence in the environment, beneficial and harmful roles, and how they influence health, food, and natural systems.

Sample Chapter MCQs

Showing 10 sample questions from this chapter.

01 Science
Many microorganisms live in:
A only space
B only fire
C air, water, and soil
D only metal
02 Science
Why is vaccination a scientific breakthrough in disease control?
A it works by making microbes larger
B it is unrelated to immunity
C it removes the need for hygiene
D it helps the body prepare protection before infection
03 Science
A food item smells normal but was left uncovered in dirty surroundings. Why may it still be unsafe?
A food is always safe if smell is normal
B harmful microbes may be present even if spoilage signs are not obvious
C microbes can be seen only when huge
D dirt never affects food
04 Science
Why is Antonie van Leeuwenhoek remembered?
A he invented the steam engine
B he discovered electricity first
C he made the first compass
D he observed microscopic life forms with improved lenses
05 Science
Microorganisms that cause disease are called:
A planets
B magnets
C pathogens
D solutions
06 Science
Which of these is most useful for viewing bacteria?
A measuring tape
B sieve
C microscope
D compass
07 Science
Drying food helps preserve it because:
A it increases spoilage always
B it creates more pathogens
C less water is available for microbial growth
D it turns food into metal
08 Science
Robert Hooke is linked with early study of cells.
A False
B True
09 Science
Why does refrigeration help preserve food?
A it removes all water instantly
B it adds preservatives naturally every time
C low temperature slows the growth of many microorganisms
D it turns all microbes useful
10 Science
Why does refrigeration not usually kill all microbes completely?
A it changes all microbes into полез useful dust
B it heats the food strongly
C it mainly slows growth instead of destroying every microbe
D it removes all moisture from all foods instantly
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