APSB - 8 - Science :: Electric conductivity of liquids

Go To: APSB-Science-Grade 8

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Course content
Textbook
Teaching learning resources

Course Content / Subtopic list:

Electrical conductivity
Chemical effects of electric current
Electroplating
Poor conductors and good conductors

Expected Learning Outcome:

SWBAT-

Define an electrical conductivity
Explain the chemical effects of electric current
Define an electroplating
Distinguish between poor conductors and good conductors with examples

Semester 1

Physics TextBook Link
Biology TextBook Link

Semester 2

Physics TextBook Link
Biology TextBook Link

Lesson Plan

[Contributor - Sirish Kumari M V]

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=1yLuTM9l0CyqpqW5cIhZ68W0Woaa7IJMw (Lesson Plan - English)

https://drive.google.com/open?id=1nOhZ51b68OnLOf8J6vKu8qtGmgmdQS0X (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.

Videos

[Contributor - Sirish Kumari MV]

Lesson Plan version 1.1 videos

https://www.youtube.com/watch?v=PafSqL1riS4 (What are conductors and insulators)

https://www.youtube.com/watch?v=g3hxEc8ps6s (Conductivity test using different liquids)

https://www.youtube.com/watch?v=y3pGtXyYKDE (Testing electrical conductivity of water)

https://www.youtube.com/watch?v=JWSPqV8zcfE&t=60s (Chemical effect of current on potato)

https://www.youtube.com/watch?v=oW4UQP07YQw (What happens in a cell)

https://www.youtube.com/watch?v=PafSqL1riS4 (Electroplating)

https://www.youtube.com/watch?v=oUhOuW2lcbE (liquid conductivity, single voltaic cell)

Images

[Author - Kripa S]

http://study.com/cimages/multimages/16/conductionofheatandelectricity.png (uses of conduction)

https://s-media-cache-ak0.pinimg.com/originals/2f/e1/a5/2fe1a5857a71abddf1da114ecbfb6464.jpg (conductivity of distiled water vs with impurities)

https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTHPn0LtRIHW3Ufozf_4bjMv4leSSMrU-Ix_6caXdFT96Y67Sjr (electricity)

Activities

[Author - Kripa S]

1. Arrange 7 paper cups for these 7 liquids: milk, curd, lemon juice, salt water, sugar water, tomato juice, plain water. Use a regular battery, and three small copper wires. Connect one end of one wire to the battery and other end into a cup, one end of the second wire to the battery and other end to the LED bulb; and third wire from the LED bulb to a cup. Check which liquid is a conductor of electricty, which liquid is an insulator. Record your observations.