MHSB - 7 - Science :: Substances we use

MSCERT-Science-Grade 7

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[Contributor - Kripa S]

http://cart.ebalbharati.in/BalBooks/pdfs/701020012.pdf#page=109 (Marathi)

http://cart.ebalbharati.in/BalBooks/pdfs/703020012.pdf#page=109 (English)

[Contributor - Kripa S]

https://www.youtube.com/watch?v=q-Bx1dZwU_0 (use of plastics)

[Contributor - Kripa S]

https://s-media-cache-ak0.pinimg.com/736x/78/8c/14/788c142df9c5e192d984b15f303e6cb3.jpg (natural vs manmade resources)

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTKqPBIoXoAKrKZQlMG9XoIh7WyTSUxhoE4jMk08ssA13fpSGZNMQ (synthetic fibres)

[Contributor - Kripa S]

1. Enlist a set of items you use everyday. Distinguish how many of them are naturally made and how many are man made. Is there a way to switch from man made item to a natural item ? Discuss

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