NCERT - 7 - Science :: Physical and Chemical Changes
Go To: NCERT-Science-Grade 7
- Lesson Plan
- Textbook
- Videos
- Images
- Activities
- Additional Aids
- Transliteration
- Worksheets
- Assessments
[Contributor - Anu Nived]
Objective: To teach the students about various physical and chemical changes that happen around us
Subtopics to be covered:
- Difference between physical change and chemical change
- Crystallisation
- Galvanisation
Learning Outcome:
- Students can classify the processes into physical and chemical changes happening around them
- They know how iron rusts
[Contributor - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0759-Vigyan/Chapter%206/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0758-Science/Chapter%206/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-MXl6cnFSaXVUdU0 (JEPC Board) (Hindi Medium)
[Contributor - Shachi Patel, Kripa S]
(Source - Bodhaguru)
https://www.youtube.com/watch?v=KjcX5UfD8dU (Hindi - Physical and Chemical changes)
(Source - Smart Learning for All)
https://www.youtube.com/watch?v=BgM3e8YZxuc (English - 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- Rahul Rohit]
https://drive.google.com/open?id=0B4m07xnDF8JpZVRDa1Q3dkljSHc
[Contributor- Dr. Nikitha Narayan]
| Term | Transliterated Term | Translated Term | |
| Chemical change | केमिकल चेंज | रासायनिक परिवर्तन | |
| Chemical reaction | केमिकल रीअक्शन | रासायनिक अभिक्रिया | |
| Crystallisation | क्रिस्टलैसेशन | क्रिस्टलीकरण | |
| Galvanisation | गलवनइसेशन | यशद लेपन | |
| Physical change | फिस्कल चेंज | भौतिक परिवर्तन | |
| Rusting | रस्टिंग | जंग लगना |
[Contributor- Rahul Rohit]
https://drive.google.com/open?id=0B4m07xnDF8JpZkUwWV9iZEJWeFU
Enable comment auto-refresher