MHSB - 7 - Science :: Physical and Chemical Changes
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[Contributor - Anu Nived]
Objective: To teach the students about various changes
Subtopics to be covered:
- Types of changes
- 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]
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
Term' | 'Transliterated Term' | 'Translated Term' |
Surroundings | सराउंडिग्ज | सभोवताली |
Rusting | रस्टिंग | गंजणे |
Accord | अकोर्ड | आपोआप |
Useful changes | यूजफुल चेंजेस | उपयुक्त बदल |
Harmful changes | हार्मफुल चेंजेस | हानिकारक बदल |
Bursting of balloon | बर्स्टिंग आॅफ बलूनन | फुगा फुटणे |
Ripening of fruit | रायपनिंग आॅफ फ्रूट | फळ पिकणे |
Wax | वॅक्स | मेण |
Reversible changes | रिवर्सिबल चेंजेस | परिवर्तनीय बदल |
Periodic changes | पिरिओडिक चेंजेस | आवर्ती बदल |
Non periodic changes | नॉन पिरिओडिक चेंजेस | अनावर्ती बदल |
Composition | कम्पोजिशन | संघटन |
Physical change | फिजिकल चेंज | भौतिक बदल |
Chemical change | केमिकल चेंज | रासायनिक बदल |
Evaporation | इवॅपोरेशन | बाष्पीभवन |
Water cycle | वॉटर सायकल | जलचक्र |
Burning | बर्निंग | जाळणे |
Breaking | ब्रेकिंग | तोडणे |
Tripod | ट्रायपॉड | तिवई |
Corrosion | करोजन | क्षरण |
Moisture | मोइस्चर | आर्द्रता |
Coat | कोट | लेप |
Distnguish | डिस्टिंग्विश | फरक करणे |
Yoghurt | योग्हर्ट | दही |
Cracker | क्रॅकर | फटाके |
Occurance | आॅकरंस | होणे |
Revolution | रेवल्यूशन | परिभ्रमण |
Stretching | स्ट्रेचिंग | ताणणे |
Canned food | कॅन्ड फूड | हवाबंद अन्नपदार्थ |
Utensils | युटेंसिल्स | भांडी |
Tinned | टिंड | कल्हई करणे |
Breeze | ब्रीज | मंद वारा |
Lightning | लायटनिंग | विजा चमकणे |
[Contributor - Aditi Joglekar]
https://drive.google.com/open?id=0BzNF2YyqQxJ-eWNzYkFfTTFDOU0
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