MHSB - 7 - Science :: Physical and Chemical Changes

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MSCERT-Science-Grade 7

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[Contributor - Anu Nived] Objective: To teach the students about various changes

Subtopics to be covered:

  1. Types of changes
  2. Corrosion

Learning Outcome:

# Students know about the various types of changes happening around us
# They can give examples of various changes (periodic, non periodic, chemical, physical,etc.) happening around us.

[Contributor - Kripa S]

https://www.youtube.com/watch?v=BgM3e8YZxuc (Physical vs chemical change)

[Contributor - Arshea Bimal]

1. Cut a piece of paper in four square pieces. Cut each square piece further into four square pieces. Keep these pieces on the floor or a table so that the pieces acquire the shape of the original piece of paper.Can you join the pieces back to make the original piece? Is there a change in the property of the paper? 2.Group students to play this game: a) Let one name a common process (eg: rusting of iron) b) The other will decide if it is a physical or chemical change. The second student an now pick another and name another process. continue...

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