Class 4 GK Worksheet: Inventions and Inventors
Remember (Who and what for?): Telephone – Alexander Graham Bell, first aeroplane – the Wright brothers, printing press – Johannes Gutenberg, raised-dot writing – Louis Braille. Smallpox vaccine – Edward Jenner, penicillin – Alexander Fleming, stethoscope – René Laennec, electric battery – Alessandro Volta, X-rays – Wilhelm Röntgen. Uses: telephone – talk far away, thermometer – body temperature, compass – directions, telescope – faraway stars, microscope – tiny germs.
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- 1.💡 Who gave us X-rays? (a) Wilhelm Röntgen (b) Edward Jenner (c) Alessandro Volta (d) Alexander Graham Bell
- 2.What does a thermometer help us do? (a) measure body temperature (b) talk to people far away (c) hear the heartbeat (d) see faraway stars
- 3.What did René Laennec give us? (a) X-rays (b) penicillin (c) the stethoscope (d) raised-dot writing
- 4.True or false: Wilhelm Röntgen gave us X-rays. (a) True (b) False
- 5.True or false: a thermometer helps us measure body temperature. (a) False (b) True
- 6.What does a clock help us do? (a) talk to people far away (b) find directions (c) print many books (d) tell the time
- 7.🔧 Which invention helps us measure body temperature? (a) stethoscope (b) clock (c) thermometer (d) calculator
- 8.True or false: the Wright brothers gave us X-rays. (a) False (b) True
- 9.True or false: Wilhelm Röntgen gave us the printing press. (a) True (b) False
- 10.💡 Who gave us the first aeroplane? (a) Alexander Graham Bell (b) Wilhelm Röntgen (c) Johannes Gutenberg (d) the Wright brothers
- 11.True or false: Alexander Graham Bell gave us penicillin. (a) False (b) True
- 12.True or false: Johannes Gutenberg gave us the first aeroplane. (a) True (b) False
- 13.🔧 Which invention helps us see faraway stars? (a) telescope (b) printing press (c) thermometer (d) stethoscope
- 14.True or false: Wilhelm Röntgen gave us the telephone. (a) True (b) False
- 15.True or false: a stethoscope helps us hear the heartbeat. (a) True (b) False
- 16.💡 Who gave us the smallpox vaccine? (a) Louis Braille (b) Edward Jenner (c) Alexander Graham Bell (d) the Wright brothers
- 17.True or false: a telephone helps us talk to people far away. (a) False (b) True
- 18.🔧 Which invention helps us do sums quickly? (a) printing press (b) clock (c) thermometer (d) calculator
- 19.True or false: Edward Jenner gave us the electric battery. (a) False (b) True
- 20.What does a printing press help us do? (a) hear the heartbeat (b) print many books (c) see tiny germs (d) tell the time
- 21.True or false: Alexander Fleming gave us penicillin. (a) False (b) True
- 22.What did Edward Jenner give us? (a) X-rays (b) the first aeroplane (c) the smallpox vaccine (d) the printing press
- 23.💡 Who gave us the telephone? (a) Johannes Gutenberg (b) René Laennec (c) Alexander Graham Bell (d) Alessandro Volta
- 24.What does a calculator help us do? (a) hear the heartbeat (b) do sums quickly (c) tell the time (d) see tiny germs
- 25.True or false: a telescope helps us see tiny germs. (a) False (b) True
- 26.True or false: Alexander Graham Bell gave us the telephone. (a) True (b) False
- 27.What did Alexander Graham Bell give us? (a) the first aeroplane (b) the printing press (c) penicillin (d) the telephone
- 28.What did Alessandro Volta give us? (a) raised-dot writing (b) the first aeroplane (c) the electric battery (d) the printing press
- 29.💡 Who gave us the electric battery? (a) Alexander Graham Bell (b) Louis Braille (c) Alessandro Volta (d) Alexander Fleming
- 30.💡 Who gave us the stethoscope? (a) the Wright brothers (b) Alexander Graham Bell (c) René Laennec (d) Louis Braille
- 31.What did Alexander Fleming give us? (a) the first aeroplane (b) raised-dot writing (c) the stethoscope (d) penicillin
- 32.True or false: a telescope helps us measure body temperature. (a) True (b) False
- 33.True or false: Alessandro Volta gave us the electric battery. (a) False (b) True
- 34.True or false: a clock helps us find directions. (a) False (b) True
- 35.🔧 Which invention helps us find directions? (a) compass (b) stethoscope (c) telephone (d) clock
- 36.True or false: a telephone helps us see tiny germs. (a) True (b) False
- 37.True or false: Johannes Gutenberg gave us the printing press. (a) False (b) True
- 38.True or false: a telephone helps us measure body temperature. (a) True (b) False
- 39.🔧 Which invention helps us talk to people far away? (a) telephone (b) thermometer (c) clock (d) compass
- 40.True or false: Johannes Gutenberg gave us the telephone. (a) False (b) True
Answer key
- Wilhelm Röntgen
- measure body temperature
- the stethoscope
- True
- True
- tell the time
- thermometer
- False
- False
- the Wright brothers
- False
- False
- telescope
- False
- True
- Edward Jenner
- True
- calculator
- False
- print many books
- True
- the smallpox vaccine
- Alexander Graham Bell
- do sums quickly
- False
- True
- the telephone
- the electric battery
- Alessandro Volta
- René Laennec
- penicillin
- False
- True
- False
- compass
- False
- True
- False
- telephone
- False
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