Science Quiz For Class 4

Science Quiz For Class 4


Engage young minds with our exciting and educational Science Quiz for Class 4! Discover a world of fascinating facts and scientific wonders, tailored to suit young learners. Foster curiosity and learning with our interactive quiz. Get ready for a fun-filled journey through the wonders of science!

Science Quiz For Class 4

1. What tissue connects muscles to bones?

a. Skin
b. Blood vessels
c. Fat
d. Tendon

Answer: Tendon

2.  Which nutrient plays an essential role in muscle-building?

a. Protein
b. Carbohydrate
c. Iron
d. Fat

Answer: Protein

3. Plants need which gas to perform photosynthesis?

a. Hydrogen
b. Carbon monoxide
c. Carbon dioxide
d. Oxygen

Answer: Carbon dioxide

4. Which scientist proposed the three laws of motion?

a. Isaac Newton
b. Thomas Alva Edison
c. Albert Einstein
d. Stephen Hawking

Answer: Isaac Newton

5. Earth is surrounded by layers of gasses collectively called the ___.

a. Hydrosphere
b. Stratosphere
c. Atmosphere
d. Ozone layer

Answer: Atmosphere

6.  Which system of the body controls the senses?

a. Circulatory system
b. Digestive system
c. Nervous system
d. Skeletal system

Answer: Nervous system

7. Which is the largest animal on earth?

a. Shark
b. Elephant
c. Blue whale
d. Giraffe

Answer: Blue whale

8. Similar body cells group together to form a _.

a. Organ
b. Tissue
c. Blood vessels
d. Joints

Answer: Tissue

9.  What energy emerges from motion?

a. Potential energy
b. Electrical energy
c. Kinetic energy
d. Gravitational energy

Answer: Kinetic energy

10. Which is the strongest sense in a dog?

a. Touch
b. Hearing
c. Smell
d. Taste

Answer: Smell

11.  The standard unit of measurement for energy is __.

a. Newton
b. Ampere
c. Watt
d. Joule

Answer: Joule

12. Which biologist proposed the theory of evolution through natural selection?

a. Charles Darwin
b. Stephen Hawking
c. Francesco Redi
d. Alexander Fleming

Answer: Charles Darwin

13. What are animals, which eat both plants and animals, called?

a. Herbivores
b. Insectivores
c. Carnivores
d. Omnivores

Answer: Omnivores

14. The outward force, away from the center, felt by an object in circular motion is _.

a. Centripetal force
b. Circular force
c. Centrifugal forces
d. Elastic force

Answer: Centrifugal force

15. What type of energy eventually depletes?

a. Kinetic energy
b. Non-renewable energy
c. Gravitational energy
d. Renewable energy

Answer: Non-renewable energy

16. A single piece of coiled DNA is called __.

a. Nucleus
b. Ribosome
c. Cytoplasm
d. Chromosome

Answer: Chromosome

17. Yeast is a type of __.

a. Plant
b. Animal
c. Bacterium
d. Fungus

Answer: Fungus

18. Which is the closest planet to the sun?

a. Venus
b. Mars
c. Mercury
d. Earth

Answer: Mercury

19. Which one of the following waves are used by the common TV remote control?

a. Radio waves
b. Lasers
c. Infrared waves
d. Ultrasonic waves

Answer: Infrared waves

20.  Which gas is safe and an effective extinguisher for all confined fires?

a. Nitrogen dioxide
b. Carbon dioxide
c. Sulphur dioxide
d. Nitrous Oxide

Answer: Carbon dioxide

21. Which one of the following elements the drum of a Photostat machine is made up of:

a. Aluminium
b. Selenium
c. Barium
d. Caesium

Answer: Selenium

22.  If we say the child has an IQ of 100, what does this mean?

a. The performance of the child is below average.
b. The performance of the child is above average.
c. The mental age of the child is equal to his actual age.
d. The performance of the child cannot be better.

Answer: The mental age of the child is equal to his actual age.

23. Which bacteria are responsible for the formation of curd?

a. Lactic acid bacteria
b. Lactobacillus Acidophillus
c. Lactobacillus aureus
d. Bacillus radicicola

Answer: Lactobacillus Acidophillus

24. In poorly ventilated buildings which one of the following inert gases can be accumulated?

a. Helium
b. Neon
c. Argon
d. Radon

Answer: Radon

25. Honey is sweeter than cane sugar or corn syrup. Which one of the following carbon sugars is responsible for this?

a. Dextrose
b. Levulose
c. Sucrose
d. Fructose

Answer: Levulose

26.Which of the following is an example of a renewable energy source? 

a. Natural gas
b. Coal 
c. Solar power
d. Nuclear power

Answer: Solar power

27.What is the boiling point of water at sea level? 

a. 0 degrees Celsius 
b. 100 degrees Celsius 
c. 212 degrees Fahrenheit 
d. 273 Kelvin

Answer: 100 degrees Celsius

28.Which of the following is NOT a component of air? 

a. Oxygen
b. Nitrogen
c. Carbon dioxide 
d. Chlorine

Answer: Chlorine

29. Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume?

a. Isothermal
b. Isochoric
c. Isobaric
d. Adiabatic

Answer: Adiabatic

Science Quiz For Class 4

30.What will be the work done by 3 moles of an ideal gas when it expands spontaneously in vacuum?

a. Zero
b. Infinite
c. 3 joules
d. 9 joules

Answer: Zero

31.What is the anti-particle of electrons?

a. Positron
b. Proton
c. Alpha-Particle
d. Beta-Patakal

Answer: Positron

32.Who is the discoverer of hydrogen?

a. Priestley
b. Cavendish
c. Ure

Answer: Cavendish

33.What is the constant of proportionality of an oscillator if the damping force is directly proportional to the velocity

a. Kg.s-1
b. Kg.m.s-1
c. Kg.s
d. Kg.m.s-2

Answer: Kg.s-1

34.What does an electric dipole experience when it is kept in the non-uniform electric field?

a. Only a force
b. Only torque
c. Force and torque both
d. Neither force nor torque

Answer: Force and torque both

35.Find the molecular mass of a gas that takes three times more time to effuse as compared to He with the same volume

a. 9 u
b. 64 u
c. 27 u
d. 36 u

Answer: 36 u

36.What percentage of body weight of an adult human is contributed by muscles?

a. 20-30%
b. 10-20%
c. 40-50%
d. 30-40%

Answer: 40-50%

37.Nails consist of modified ____ cells

a. Epithelial
b. Epidermal
c. Hypodermal
d. Dermal

Answer: Epidermal

38.There are approximately how many muscles in Human body?

a. 206
b. 320
c. 554
d. 650

Answer: 650

39.What are the basic units from which human spare parts can be created?

a. Nerve cells
b. Stem cells
c. Heart cells
d. Kidney cells

Answer: Stem cells

40.The most commonly found green house gas in the world is: –

a. carbon dioxide
b. Water vapor
c. Sulfur Dioxide
d. ozone

Answer: Water vapor

41.Which of the following is not a traditional source of energy?

a. Natural Gas
b. Mineral Oil
c. Geothermal energy
d. Coal

Answer: Geothermal energy

42.Which of these diseases is also known as ‘encephalitis’?

a. Japanese encephalitis
b. Tetanus
c. Dengue
d. Rabies

Answer: Japanese encephalitis

43.Which of the following is ‘V.A.M.’ (VAM) is fungus?

a. Glomus species
b. Fusarium species
c. Rhizoctonia species
d. Pythium species

Answer: Glomus species

44.The main ingredient of ‘Bio Gas’ is?

a. Ethane
b. Ammonia
c. Methane
d. Ethylene

Answer: Methane

45.Sulfur is used?

a. Dynamite
b. Gunpowder
c. Ammo
d. All of the above

Answer: All of the above

46.Can the difference between cotton and woolly fibers be found?

a. Touching
b. Torches
c. Reacting with NaOH
d. Taking action with H.S.O.

Answer: Torches

47.Was Insuline Discovered?

a. Bentig
b. Domake
c. Ronald Ross
d. Harvey

Answer: Bentig

48.Which one of the following is not an ape?

a. Gorilla
b. Gibbon
c. Langur
d. None of these

Answer: Langur

49.Name the vitamin which is not found in any non-vegetarian food?

a. Vitamin B12
b. Vitamin C
c. Vitamin D
d. Vitamin K

Answer: Vitamin D

50.Which of the following is LPG? What is the main component of?

a. Methane
b. Butane
c. Propane
d. Ethane

Answer: Propane

Science Quiz For Class 4 Download Link

Science Quiz For Class 4 – Download

Read Our Quiz Blog Post

Quiz For Class 4
Quiz For Class 5
Quiz For Class 6
Quiz For Class 7
Quiz For Class 8
Quiz For Class 9
Quiz For Class 10

Leave a Comment

error: Content is protected !!