Chemical Effects of Electric Current worksheet for class 8

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CBSE worksheets for Chemical Effects of Electric Current worksheet for class 8 in PDF for free download. Science worksheets for class 8 CBSE includes worksheets on Chemical Effects of Electric Current as per NCERT syllabus. CBSE class 8 worksheets as PDF for free download Chemical Effects of Electric Current worksheets. Users can download and print the worksheets on class 8 Science Chemical Effects of Electric Current for free.

Download Chemical Effects of Electric Current worksheet for class 8

Chemical Effects of Electric Current worksheet for class 8 Important Topics

  • Do Liquids Conduct Electricity?
  • Chemical Effects of Electric Current
  • Electroplating

Chemical Effects of Electric Current worksheet for class 8

Some important Facts about Chemical Effects of Electric Current worksheet for class 8

  1. Test the conduction of electricity through various fruits and vegetables. Display your result in a tabular form.
  2. Repeat Activity 14.7 with a zinc plate in place of the copper plate connected to the negative terminal of the battery. Now replace zinc plate with some other metallic object and again repeat the activity. Which metal gets deposited over which other metal? Discuss your findings with your friends.
  3. Find out if there is a commercial electroplating unit in your town. What objects are electroplated there and for what purpose? (The process of electroplating in a commercial unit is much more complex than what we did in. Find out how they dispose off the chemicals they discard.
  4. Imagine that you are an ‘entrepreneur’ and have been provided a loan by a bank to set up a small electroplating unit. What object would you like to electroplate and for what purpose? (Look up the meaning of ‘entrepreneur’ in a dictionary).
  5. Find out the health concerns associated with chromium electroplating. How are people trying to resolve them?
  6. You can make a fun pen for yourself. Take a conducting metal plate and spread a moist paste of potassium iodide and starch. Connect the plate to a battery as shown in .Now using the free end of the wire, write a few letters on the paste. What do you see?

NCERT Class 8 Science Solved Worksheets

  • Chapter 1 – Crop Production and Management
  • Chapter 2 – Microorganisms : Friend and Foe
  • Chapter 3 – Synthetic Fibres and Plastics
  • Chapter 4 – Materials : Metals and Non-Metals
  • Chapter 5 – Coal and Petroleum
  • Chapter 6 – Combustion and Flame
  • Chapter 7 – Conservation of Plants and Animals
  • Chapter 8 – Cell – Structure and Functions
  • Chapter 9 – Reproduction in Animals
  • Chapter 10 – Reaching The Age of Adolescence
  • Chapter 11 – Force and Pressure
  • Chapter 12 – Friction
  • Chapter 13 – Sound
  • Chapter 14 – Chemical Effects of Electric Current
  • Chapter 15 – Some Natural Phenomena
  • Chapter 16 – Light
  • Chapter 17 – Stars and The Solar System
  • Chapter 18 – Pollution of Air and Water

CBSE Worksheets for Class 8 Science in PDF

Electroplating

You know that a brand new bicycle has shiny handlebar and wheel rims. However, if these are accidentally scratched, the shiny coating comes off revealing a not so shiny surface beneath. You might have also seen women using ornaments, which appear to be made of gold. However, with repeated use, the gold coating wears off, revealing silver or some other metal beneath. In both these cases, a metal has a coating of another metal. Do you wonder how a layer of one metal can be deposited on top of another? Well, let us try doing it ourselves.

To download Printable worksheets for class 8 Mathematics and Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through the best app for CBSE students and myCBSEguide website.


 

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