Famous Scientists — Homi Bhabha Class 6 General Knowledge MCQs with Solutions
Free Homi Bhabha Class 6 General Knowledge Famous Scientists MCQs with step-by-step solutions (20 questions). Part of Scientists & Discoveries. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Famous Scientists · easy · theory
Which scientist is famous for the idea of gravity, said to have come to him when he saw an apple fall from a tree?
A. Galileo Galilei
B. Charles Darwin
C. Thomas Edison
D. Isaac Newton ✓ Correct
Solution: Isaac Newton described how gravity pulls objects down, like an apple falling to the ground.
Q2 — Famous Scientists · easy · theory
Who invented the first practical electric light bulb?
A. Marie Curie
B. Albert Einstein
C. Isaac Newton
D. Thomas Edison ✓ Correct
Solution: Thomas Edison made the first long-lasting, practical electric light bulb.
Q3 — Famous Scientists · easy · theory
Which scientist gave the famous theory of relativity and the equation E = mc²?
A. Albert Einstein ✓ Correct
B. Isaac Newton
C. Michael Faraday
D. Galileo Galilei
Solution: Albert Einstein gave the theory of relativity and the well-known equation E = mc².
Q4 — Famous Scientists · easy · theory
Who invented the telephone, a machine that lets people talk to each other from far away?
A. Thomas Edison
B. Nikola Tesla
C. Guglielmo Marconi
D. Alexander Graham Bell ✓ Correct
Solution: Alexander Graham Bell invented the telephone; Marconi is remembered for the radio.
Q5 — Famous Scientists · easy · theory
Which scientist is famous for the theory of evolution by natural selection?
A. Isaac Newton
B. Gregor Mendel
C. Louis Pasteur
D. Charles Darwin ✓ Correct
Solution: Charles Darwin explained how living things change over long periods of time through natural selection.
Q6 — Famous Scientists · easy · theory
Who discovered penicillin, the first antibiotic medicine, which came from a mould?
A. Alexander Fleming ✓ Correct
B. Louis Pasteur
C. Edward Jenner
D. Robert Koch
Solution: Alexander Fleming discovered penicillin, which is used to fight germs that cause illness.
Q7 — Famous Scientists · easy · theory
Marie Curie is famous for her scientific work on which of these?
A. Evolution
B. Radioactivity ✓ Correct
C. Gravity
D. Electricity
Solution: Marie Curie studied radioactivity and won two Nobel Prizes for her discoveries.
Q8 — Famous Scientists · easy · theory
Which scientist improved the telescope and used it to discover the moons of the planet Jupiter?
A. Isaac Newton
B. Johannes Kepler
C. Nicolaus Copernicus
D. Galileo Galilei ✓ Correct
Solution: Galileo Galilei used his improved telescope to study the sky and found four moons of Jupiter.
Q9 — Famous Scientists · medium · theory
The ancient scientist who is said to have shouted "Eureka!" after discovering the principle of floating (buoyancy) was
A. Isaac Newton
B. Pythagoras
C. Aristotle
D. Archimedes ✓ Correct
Solution: Archimedes discovered how objects float and displace water, and is said to have cried "Eureka!"
Q10 — Famous Scientists · medium · theory
Michael Faraday is best known for his important discoveries in which area of science?
A. Electricity and magnetism ✓ Correct
B. The human body
C. The stars
D. The chemistry of food
Solution: Michael Faraday studied electricity and magnetism, and his work helped lead to electric motors.
Q11 — Famous Scientists · medium · theory
Louis Pasteur invented a way to kill harmful germs in milk by gently heating it. This process is called
A. Filtration
B. Fermentation
C. Distillation
D. Pasteurisation ✓ Correct
Solution: Heating a liquid to kill germs is called pasteurisation, named after Louis Pasteur.
Q12 — Famous Scientists · medium · theory
Which two brothers built and flew the first successful powered aeroplane?
A. The Marconi Brothers
B. The Wright Brothers ✓ Correct
C. The Curie Brothers
D. The Montgolfier Brothers
Solution: The Wright Brothers, Orville and Wilbur, made the first successful powered aeroplane flight.
Q13 — Famous Scientists · medium · theory
Who invented the first practical electric battery, which could store and give a steady flow of electricity?
A. Michael Faraday
B. Thomas Edison
C. Benjamin Franklin
D. Alessandro Volta ✓ Correct
Solution: Alessandro Volta made the first battery; the unit "volt" is named after him.
Q14 — Famous Scientists · medium · theory
Gregor Mendel is called the "Father of Genetics" because of his careful experiments with which plant?
A. Rose bushes
B. Pea plants ✓ Correct
C. Fruit flies
D. Mice
Solution: Gregor Mendel studied how features pass from parents to offspring using pea plants.
Q15 — Famous Scientists · medium · theory
Nikola Tesla is well known for his work on which type of electric current that is used in our homes today?
A. Static charge only
B. Alternating current (AC) ✓ Correct
C. Direct current only
D. Sound current
Solution: Nikola Tesla developed alternating current (AC), the kind of electricity supplied to homes.
Q16 — Famous Scientists · medium · theory
Edward Jenner is remembered for making the first vaccine, which protected people against which disease?
A. Tuberculosis
B. Cholera
C. Smallpox ✓ Correct
D. Malaria
Solution: Edward Jenner developed the first vaccine, which protected people from smallpox.
Q17 — Famous Scientists · hard · theory
Which scientist first suggested that the Sun, and not the Earth, is at the centre of the solar system?
A. Nicolaus Copernicus ✓ Correct
B. Aristotle
C. Ptolemy
D. Galileo Galilei
Solution: Nicolaus Copernicus proposed that the planets, including Earth, move around the Sun.
Q18 — Famous Scientists · hard · theory
Which scientist noticed that a compass needle moves when an electric current flows nearby, showing electricity and magnetism are linked?
A. Charles Darwin
B. James Watt
C. Robert Hooke
D. Hans Christian Oersted ✓ Correct
Solution: Hans Christian Oersted saw a compass needle turn near a wire carrying current, linking electricity and magnetism.
Q19 — Famous Scientists · hard · theory
Robert Hooke was the first to use the word "cell" for the tiny box-like spaces he saw through a microscope in a thin slice of
A. Cork ✓ Correct
B. Blood
C. Leaves
D. Water
Solution: Looking at cork under a microscope, Robert Hooke saw tiny compartments and named them "cells".
Q20 — Famous Scientists · hard · theory
James Watt is remembered for greatly improving which machine that helped power the Industrial Revolution?
A. The telephone
B. The light bulb
C. The steam engine ✓ Correct
D. The printing press
Solution: James Watt improved the steam engine, making it far more useful; the unit "watt" is named after him.