MHSB - 7 - Science :: Physical and Chemical Changes

MSCERT-Science-Grade 7

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[Contributor - Kripa S]

http://cart.ebalbharati.in/BalBooks/pdfs/701020012.pdf#page=97 (Marathi)

http://cart.ebalbharati.in/BalBooks/pdfs/703020012.pdf#page=97 (English)

[Contributor - Kripa S]

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

[Contributor - Anu Nived]

http://image.slidesharecdn.com/physical-and-chemical-change-1224466582409274-8/95/physical-and-chemical-change-6-728.jpg (chemical change) https://image.slidesharecdn.com/physical-and-chemical-change-1224466582409274-8/95/physical-and-chemical-change-5-728.jpg?cb=1224441397 (chemical change) http://image.slidesharecdn.com/physical-and-chemical-change-1224466582409274-8/95/physical-and-chemical-change-8-728.jpg (physical 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...

[Contributor - Aditi Joglekar]

https://drive.google.com/open?id=0BzNF2YyqQxJ-OV9NTTdDNU1aakk

[Contributor - Aditi Joglekar]

https://drive.google.com/open?id=0BzNF2YyqQxJ-eWNzYkFfTTFDOU0

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