Mains Electricity and Dry Cell (Iron Man). Interactive worksheet ... - Free Printable

Sure! Let’s solve the worksheet step by step.

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Worksheet Topic: Electricity (Mains Electricity and Dry Cell)
Task: Label each power source as “Mains” or “Batteries”

> Key Concept:
> - Mains electricity = Power from wall sockets (plugged into the electrical grid). Usually requires a cord/plug.
> - Batteries = Portable power sources (dry cells, rechargeable batteries). Devices that are wireless or have removable/replaceable batteries.

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Let’s go row by row:

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#### Row 1:

1. Television (TV) → Plugs into wall socket → Mains
2. Vacuum cleaner → Has a plug, needs mains power → Mains
3. Smartphone → Runs on rechargeable battery → Batteries
4. Wristwatch → Uses small button cell battery → Batteries

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#### Row 2:

5. Electric fan → Plugs into outlet → Mains
6. Toy car → Typically runs on AA/AAA batteries → Batteries
7. Remote control → Uses dry cell batteries → Batteries
8. Air conditioner → Large appliance, plugged into mains → Mains

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#### Row 3:

9. Radio (portable with speakers) → Often battery-powered (though some can be mains too — but this image shows portable type) → Batteries
*(Note: If it has an antenna and looks like a classic portable radio, it’s likely battery-operated.)*
10. Flashlight/Torch → Uses batteries → Batteries
11. Table lamp → Plugs into wall → Mains
12. Printer → Plugs into wall → Mains

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✔ Final Answers:

| Image | Power Source |
|-----------------------|--------------|
| TV | Mains |
| Vacuum cleaner | Mains |
| Smartphone | Batteries |
| Wristwatch | Batteries |
| Electric fan | Mains |
| Toy car | Batteries |
| Remote control | Batteries |
| Air conditioner | Mains |
| Radio | Batteries |
| Flashlight | Batteries |
| Table lamp | Mains |
| Printer | Mains |

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💡 Teaching Tip:

You can explain to students:
> “If it has a plug or sits on the floor and is heavy, it probably uses Mains. If it’s small, portable, or you change batteries in it, it uses Batteries.”

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Let me know if you’d like a printable answer key or explanation for younger learners! 🎓⚡🔋