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Avogadro Video Questions Mark as Favorite (23 Favorites)

ACTIVITY in History, Mole Concept, Measurements. Last updated January 29, 2024.


In this activity, students will watch a video about Amedeo Avogadro and answer related questions. They will learn that he is the scientist given credit for the mole concept and that he also made several other discoveries in chemistry.

Grade Level

High School


By the end of this activity, students should be able to

  • Understand and give the definition of a mole.
  • Explain why Avogadro is given credit for the measurement of the mole.

Chemistry Topics

This activity supports students’ understanding of

  • Mole concept
  • Measurement
  • History of Chemistry


Teacher Preparation: minimal

Lesson: 10 minutes



  • No specific safety precautions need to be observed for this activity.

Teacher Notes

  • The Amedeo Avogadro video was developed as a part of the AACT original video series, Founders of Chemistry. The entire series can be found here.
  • The running time of this video is four minutes and forty seconds.
  • This video is intended for students to watch, and for teachers to integrate into their curriculum.
  • The student questions/answers are presented in sequential order in the video.
  • An answer key has also been provided for teacher reference.
  • Videos can be shown with the use of a classroom projector, or teachers can generate a Student Pass through their AACT membership to allow students to independently access the video.

For the Student



While watching the Founders of Chemistry Video about Amedeo Avogadro, answer the following questions:

  1. What is the value for a mole?
  2. What is John Dalton’s atomic theory?
  3. Why were Avogadro’s claims questionable to the scientific community?
  4. How can both Dalton and Gay-Lussac’s claims be true if Avogadro is right?
  5. When did Avogadro publish his ideas and when were they accepted?
  6. What is the definition of a mole?
  7. What year was the phrase ‘Avogadro’s constant’ first used in a published paper?
  8. Why was Avogadro given credit in this paper?