Difference between revisions of "DSERT - 7 - Science :: Hard water and Soft water"
(→Images) |
|||
Line 3: | Line 3: | ||
=Lesson Plan= | =Lesson Plan= | ||
− | [ | + | [Contributor - SHILP G s] |
− | + | Dear Volunteer, | |
− | |||
− | + | 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=1Ss3Uw7x9wzMo5mA6ZNCKUSfBurd8fU17''' (Lesson Plan - English) |
− | |||
− | - | + | |
+ | '''https://drive.google.com/open?id=1mMn3ZRKv_kEmnz0UFl5PS1UDHjX6Uq11''' (PPT - English) | ||
+ | |||
+ | |||
+ | |||
+ | You may use the content as it is or download and modify them to suit the students requirements. | ||
+ | |||
+ | |||
+ | |||
+ | If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version. | ||
+ | |||
+ | |||
+ | |||
+ | The worksheets of the lesson can be accessed from the worksheet tab. | ||
+ | |||
+ | |||
+ | |||
+ | Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content. | ||
=Textbook= | =Textbook= | ||
− | [ | + | [Contributor - Kripa S] |
Line 35: | Line 48: | ||
=Videos= | =Videos= | ||
− | [ | + | [Contributor - Kripa S] |
Line 41: | Line 54: | ||
https://youtu.be/w7tUZIVz5LE (Turn hard water soft - English) | https://youtu.be/w7tUZIVz5LE (Turn hard water soft - English) | ||
+ | |||
+ | |||
+ | [Contributor - Shilpa G S] | ||
+ | |||
+ | Lesson Plan version 1.1 videos | ||
+ | |||
+ | https://www.youtube.com/watch?v=ocP14X0Hvro | ||
+ | |||
+ | https://www.youtube.com/watch?v=FmTlFmMakhA | ||
+ | |||
+ | https://www.youtube.com/watch?v=XYZ147j3r0E (hard water and soft water) | ||
+ | |||
+ | https://www.youtube.com/watch?v=BmpknJNDXfE (ion exchange process) | ||
+ | |||
+ | https://www.youtube.com/watch?v=W5teyd8srp8 | ||
=Images= | =Images= | ||
− | [ | + | [Contributor - Anu Nived] |
http://www.goldwatergroup.ca/wp-content/uploads/2016/10/eagle-water-treatment-hard-water.jpg (effects of hard water) | http://www.goldwatergroup.ca/wp-content/uploads/2016/10/eagle-water-treatment-hard-water.jpg (effects of hard water) | ||
+ | |||
+ | [Contributor - Shilpa G S] | ||
+ | |||
+ | Lesson Plan version 1.1 images | ||
+ | |||
+ | http://rehabit.at/wp-content/uploads/2014/04/Hard-water-stains-in-toilet-before-cleaning.jpg | ||
+ | |||
+ | https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQBgWdPE2fkMV0TA8jDYo67X8vkVqaRJRZLyO6VQLMIIODJx8HyQg | ||
+ | |||
+ | https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRWU83Tv4t_bUw6AWTlMcYQTPJZDMHYY84v0Vz8w4O63eaCIInJ | ||
+ | |||
+ | http://mathscinotes.files.wordpress.com/2014/02/c0027879-heavy_water-spl.jpg?resize=525%2C530 | ||
+ | |||
=Activities= | =Activities= | ||
− | [ | + | [Contributor - Kripa S, Nandini N] |
Line 60: | Line 101: | ||
3. https://drive.google.com/open?id=0BzNF2YyqQxJ-RHV1NTBmbkdkbE0 | 3. https://drive.google.com/open?id=0BzNF2YyqQxJ-RHV1NTBmbkdkbE0 | ||
+ | |||
+ | [Contributor - Shipla G S] | ||
+ | |||
+ | Lesson plan version 1.1 activities | ||
+ | |||
+ | 1. Make the students in to groups and ask them to collect different kinds of water available in their locality ,during rainy season ask them to collect rain water as well and test the yield of latter with soap to test the type of water | ||
+ | |||
+ | |||
+ | 2. Take 20 ml of hard water in a beaker. Add a spoon of sodium carbonate to it. What do you observe? An insoluble precipitate is formed. | ||
+ | |||
+ | This precipitate is either calcium carbonate or magnesium carbonate depending on the salt present in the hard water sample taken. Remove the precipitate by filtration. The water, so obtained is soft. | ||
+ | |||
+ | To further test this water, pour some soap solution in it and shake well. Does it lather? Yes, it does, showing that the water is soft | ||
+ | |||
+ | |||
=Additional Aids= | =Additional Aids= | ||
− | [ | + | [Contributor - Nandini N] |
https://drive.google.com/open?id=0BzNF2YyqQxJ-M0Y2alB4VU9rS1k | https://drive.google.com/open?id=0BzNF2YyqQxJ-M0Y2alB4VU9rS1k | ||
+ | |||
+ | [Contributor - Shilpa G S] | ||
+ | |||
+ | Lesson plan version 1.1 PPT | ||
+ | |||
+ | https://drive.google.com/open?id=1mMn3ZRKv_kEmnz0UFl5PS1UDHjX6Uq11 | ||
+ | |||
=Transliteration= | =Transliteration= | ||
− | [ | + | [Contributor - Apoorva Ramachandra] |
{| class="wikitable" | {| class="wikitable" | ||
|'''Term''' || '''Transliterated Term''' || '''Translated Term'''|| | |'''Term''' || '''Transliterated Term''' || '''Translated Term'''|| | ||
Line 106: | Line 169: | ||
=Worksheets= | =Worksheets= | ||
− | [ | + | [Contributor - Nandini N] |
Revision as of 14:38, 18 September 2017
Go To: DSERT-Science-Grade 7
- Lesson Plan
- Textbook
- Videos
- Images
- Activities
- Additional Aids
- Transliteration
- Worksheets
- Assessments
[Contributor - SHILP G s]
Dear Volunteer,
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=1Ss3Uw7x9wzMo5mA6ZNCKUSfBurd8fU17 (Lesson Plan - English)
https://drive.google.com/open?id=1mMn3ZRKv_kEmnz0UFl5PS1UDHjX6Uq11 (PPT - English)
You may use the content as it is or download and modify them to suit the students requirements.
If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.
The worksheets of the lesson can be accessed from the worksheet tab.
Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.
[Contributor - Kripa S]
http://ktbs.kar.nic.in/new/website%20textbooks/class7/7th-kannada-science-01.pdf#page=137 (Kannada Medium)
http://ktbs.kar.nic.in/new/website%20textbooks/class7/7th-english-science-01.pdf#page=137 (English Medium)
[Contributor - Kripa S]
https://www.youtube.com/watch?v=ebygQes5Wig (Hard and soft water - English)
https://youtu.be/w7tUZIVz5LE (Turn hard water soft - English)
[Contributor - Shilpa G S]
Lesson Plan version 1.1 videos
https://www.youtube.com/watch?v=ocP14X0Hvro
https://www.youtube.com/watch?v=FmTlFmMakhA
https://www.youtube.com/watch?v=XYZ147j3r0E (hard water and soft water)
https://www.youtube.com/watch?v=BmpknJNDXfE (ion exchange process)
https://www.youtube.com/watch?v=W5teyd8srp8
[Contributor - Anu Nived]
http://www.goldwatergroup.ca/wp-content/uploads/2016/10/eagle-water-treatment-hard-water.jpg (effects of hard water)
[Contributor - Shilpa G S]
Lesson Plan version 1.1 images
http://rehabit.at/wp-content/uploads/2014/04/Hard-water-stains-in-toilet-before-cleaning.jpg
http://mathscinotes.files.wordpress.com/2014/02/c0027879-heavy_water-spl.jpg?resize=525%2C530
[Contributor - Kripa S, Nandini N]
1. Take two glasses of water. Add salt in one glass and mix well. Now add one pinch of soap powder in both the glasses of water. You will observe that the soap dissolves faster in the water without salt (soft water), but takes more time to dissolve in salt water (hard water)
2. When you store hard water in a vessel, you will see salt sediments in the vessel after water evaporates. Observe at home and share your points.
3. https://drive.google.com/open?id=0BzNF2YyqQxJ-RHV1NTBmbkdkbE0
[Contributor - Shipla G S]
Lesson plan version 1.1 activities
1. Make the students in to groups and ask them to collect different kinds of water available in their locality ,during rainy season ask them to collect rain water as well and test the yield of latter with soap to test the type of water
2. Take 20 ml of hard water in a beaker. Add a spoon of sodium carbonate to it. What do you observe? An insoluble precipitate is formed.
This precipitate is either calcium carbonate or magnesium carbonate depending on the salt present in the hard water sample taken. Remove the precipitate by filtration. The water, so obtained is soft.
To further test this water, pour some soap solution in it and shake well. Does it lather? Yes, it does, showing that the water is soft
[Contributor - Nandini N]
https://drive.google.com/open?id=0BzNF2YyqQxJ-M0Y2alB4VU9rS1k
[Contributor - Shilpa G S]
Lesson plan version 1.1 PPT
https://drive.google.com/open?id=1mMn3ZRKv_kEmnz0UFl5PS1UDHjX6Uq11
[Contributor - Apoorva Ramachandra]
Term | Transliterated Term | Translated Term | |
Salts | ಸಾಲ್ಟ್ಸ್ | ಲವಣಗಳು | |
Disadvantage | ಡಿಸ್ಅಡ್ವಾಂಟೇಜ್ | ಅನಾನುಕೂಲ | |
Physical Property | ಫಿಸಿಕಲ್ ಪ್ರಾಪರ್ಟಿ | ಭೌತಿಕ ಲಕ್ಷಣ | |
Heavy water | ಹೆವಿ ವಾಟರ್ | ಭಾರ ಜಲ | |
Hard water | ಹಾರ್ಡ್ ವಾಟರ್ | ಗಡಸು ನೀರು | |
Soft water | ಸಾಫ್ಟ್ ವಾಟರ್ | ಮೆದು ನೀರು | |
Solvent | ಸೋಲ್ವೆನ್ಟ್ | ದ್ರಾವಕ | |
Universal | ಯೂನಿವರ್ಸಲ್ | ಸಾರ್ವತ್ರಿಕ | |
Scaling | ಸ್ಕೇಲಿಂಗ್ | ಸ್ತರಿಗೊಳಿಸುವಿಕೆ | |
Temporary | ಟೆಂಪೊರರಿ | ತಾತ್ಕಾಲಿಕ | |
Permanent | ಪರ್ಮನೆಂಟ್ | ಶಾಶ್ವತ | |
Boiling | ಬೋಯ್ಲಿಂಗ್ | ಕುದಿಸುವುದು | |
Ion Exchange | ಅಯಾನ್ ಎಕ್ಸ್ಚೇಂಜ್ | ಅಯಾನು ವಿನಿಮಯ | |
Discovery | ಡಿಸ್ಕವರಿ | ಸಂಶೋಧನೆ |
[Contributor - Nandini N]
https://drive.google.com/open?id=0BzNF2YyqQxJ-cHJfSENBYTJyeW8
Enable comment auto-refresher