JACB - 7 - Science :: Electric Current and its Effects
Go To: JACB-Sci-Grade 7
Course Content / Subtopic list:
- Introduction to charge,symbols of electronic components
- Battery
- Cells and types of cells
- Heating effect of electric current - conductors and insulators
- Electric bulb and electric fuse
- Magnetic effect of electric current
- Lightning and magnetism
- Electromagnet and permanent magnets
- Electric bell
- Hazards of electricity
- MCB [miniature circuit breaker]
Expected Learning Outcome:
SWBAT-
- Define MCB
- Define battery and cell
- Identify various types of cells
- Explain the heating effects of electric current
- Differentiate between conductors and insulators
- Define electric bulb and electric fuse
- Explain the magnetic effect of electric current
Lesson Plan
[Contributor - Ketika Garg]
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=1AgzX8Yp-bXkDI0keYDr9n-bJlocIb1mJ (Lesson Plan - English)
https://drive.google.com/open?id=1XsmTp71UsoyLa9NoQoRLo2aft8rMYZux (PPT - Hindi)
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
[Author - Kripa S]
https://www.youtube.com/watch?v=KMKjUqf50PU (what is electricity)
https://www.youtube.com/watch?v=QZPURSF5iH4 (electric conductivity)
[Contributor - Ketika Garg]
Lesson plan version 1.1 videos
https://www.youtube.com/watch?v=eoNlEYVNN2A (introduction to electric current)
https://www.youtube.com/watch?v=4l01QuplwPQ (Electric circuits)
https://www.youtube.com/watch?v=IatDpwozlH8
https://www.youtube.com/watch?v=Wu4iwvKN3tg (introduction to heating effect of current)
https://www.youtube.com/watch?v=2bMSHVF30C4&feature=youtu.be&t=2 (magnetic effect of current)
[Contributor - Vijaylakshmi Kamalapuri]
https://www.youtube.com/watch?v=xFQgt47_R2Y (Voltage, current volt meaning)
https://www.youtube.com/watch?time_continue=66&v=15reEXxblLA (Light emiting diode)
https://www.youtube.com/watch?v=KMKjUqf50PU (What is electricity)
https://www.youtube.com/watch?v=QZPURSF5iH4 (Electrical conductivity)
https://www.youtube.com/watch?v=7yPq3eSP1So (What is electricity , types of currents)
Images
[Author - Kripa S]
http://images.tutorvista.com/content/thermal-chemical-currents/copper-sulphate-electrolysis.jpeg (effect of electricity)
http://mste.illinois.edu/nwaight/ohm/images/animated%20gifs/circuit.gif (electric current)
https://i.ytimg.com/vi/t6pqrkWSWL8/maxresdefault.jpg (flow of current)
Activities
[Author - Arshea Bimal]
1. Take around 75 cm long piece of insulated (plastic) flexible wire and an iron nail, say about 6–10 cm long. Wind the wire tightly around the nail in the form of a coil. Connect the free ends of the wire to the terminals of a cell through a switch
[Contributor - Ketika Garg]
Lesson Plan version 1.1 activities
1. You will need a cell, an electric bulb, a metal key, two iron nails, a thick metal wire (with its plastic insulation scraped off) and few pieces of connecting wires. Fix two nails nearly one metre apart on a wooden board so that these can be used as a hook. Fix the wire between the nails after inserting it through the loop of the key. Connect one end of this wire to a bulb and a cell. Connect the other terminal of the cell to the key with a wire. Ask the kids to move the loop along the straight wire without touching it. Glowing of the bulb would indicate that the loop of the key has touched the wire.
2. Construct a basic circuit with a bulb, a cell and a switch. Draw the circuit diagram in notebook, for two cases: switch on and switch off.
In the same circuit setup, construct a battery, with two cells (terminals properly aligned). Redraw the circuit diagram with the battery.
3. Ask the students to find regular appliances and notice the mark of ISI and introduce the need of such certification marks. Talk about how there are fake ISI marks too, and if possible, show an example, and help in discerning the difference.
Additional Aids
[Contributor - ketika Garg]
Lesson Plan version 1.1 PPT
https://drive.google.com/open?id=1XsmTp71UsoyLa9NoQoRLo2aft8rMYZux
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