GK · lesson 21 of 30 · free

Inventions and inventors — GK worksheet

Inventions make life easier. Alexander Graham Bell invented the telephone, the Wright brothers built and flew the first aeroplane, Johannes Gutenberg invented the printing press and Louis Braille invented raised-dot writing for blind people. A stethoscope helps doctors hear the heartbeat and a compass helps us find directions.

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Remember

Who and what for? — “match the invention with its inventor and with what it helps us do”

  1. Telephone – Alexander Graham Bell, first aeroplane – the Wright brothers, printing press – Johannes Gutenberg, raised-dot writing – Louis Braille.
  2. Smallpox vaccine – Edward Jenner, penicillin – Alexander Fleming, stethoscope – René Laennec, electric battery – Alessandro Volta, X-rays – Wilhelm Röntgen.
  3. Uses: telephone – talk far away, thermometer – body temperature, compass – directions, telescope – faraway stars, microscope – tiny germs.

Use it for: Class 4 GK and science lessons, science fairs and “how things work” projects.

Worked example: 💡 Who gave us the telephone? → Alexander Graham Bell

  1. The telephone carries our voice along wires to someone far away.
  2. Alexander Graham Bell invented it.

Check: A telephone helps us talk to people far away ✓

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🏁 Lesson 21 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

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🖨️ Class 4 GK Worksheet: Inventions and Inventors

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