Difference between revisions of "NCERT - 8 - Science :: Chemical Effects of Electric Current"

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'''Objective:''' To teach the students about the chemical effects of electric current
 
'''Objective:''' To teach the students about the chemical effects of electric current
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'''Subtopics to be covered:'''
 
'''Subtopics to be covered:'''
 
# To test whether liquids conduct electricity
 
# To test whether liquids conduct electricity

Revision as of 11:39, 1 August 2017

Go To: NCERT-Science-Grade 8

[edit]

[Author - Anu Nived]

Objective: To teach the students about the chemical effects of electric current

Subtopics to be covered:

  1. To test whether liquids conduct electricity
  2. Electroplating

Learning Outcome:

  1. Students know that some liquids are good conductors of electricity while some are bad.
  2. They know about the chemical effects of currents

[Author - Kripa S]


https://www.youtube.com/watch?v=KMKjUqf50PU (what is electricity)

https://www.youtube.com/watch?v=QZPURSF5iH4 (electric conductivity)


[Author - Kripa S]


1. Take about two teaspoonfuls of distilled water in a clean and dry plastic or rubber cap of a bottle. (You may obtain distilled water from your school science lab. You may also get distilled water from a medical store or a doctor or a nurse). Use the tester to test whether distilled water conducts electricity or not. What do you find? Does distilled water conduct electricity? Now dissolve a pinch of common salt in distilled water. Again test. What do you conclude this time?

2. Test the conduction of electricity through various fruits and vegetables. Display your result in a tabular form.


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