UBSE - 7 - Science :: Physical and Chemical Changes
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[Contributor - Suhas B]
Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.
https://drive.google.com/open?id=1ABUB9Z0UjvtqvSFCHFLKYfqKbkLdvRXA (Lesson Plan - English)
https://drive.google.com/open?id=1urU46KD2w9P2Wq0AgwvEg07ew2w9VEEs (PPT - English)
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The worksheets of the lesson can be accessed from the worksheet tab.
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[Author - Shachi Patel, Kripa S]
https://www.youtube.com/watch?v=KjcX5UfD8dU (Hindi - Physical and Chemical changes)
https://www.youtube.com/watch?v=BgM3e8YZxuc (Physical vs chemical change)
[Contributor - Suhas B]
Lesson Plan version 1.1 videos
https://www.youtube.com/watch?v=hOhgXCrlDfo (heating of iron in forge)
https://www.youtube.com/watch?v=GjdUfezGxb8 (Burning of magnesium ribbon)
[Author - 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)
[Author - 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 - Suhas B]
Lesson Plan version 1.1 activities
1. Take a square piece of paper and cut it into 4 equal squares. Again take one piece and cut it into 4 squares. Now arrange them to form square, we started with.
2. Take chalk dust from under the board or crush one. Put some water and roll it to form chalk again.
3. Take a magnesium strip and burn it. Note down the reaction equation. Next, dissolve the ash in the water. Again note down the reaction equation.
1. Mg + O2 ----------- MgO
2. MgO + H2O ---------- Mg(OH)2
[Contributor - Suhas B]
Lesson Plan version 1.1 PPT
https://drive.google.com/open?id=1urU46KD2w9P2Wq0AgwvEg07ew2w9VEEs (PPT - English)
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