🔬 Engineering Activity

Potato Battery

Generate electricity from a potato and light up an LED. One of the most popular STEM activity for school children across India.

🎓 Grade ⏱ 30–45 min ⭐⭐ Medium 👨‍👩‍👧 Adult supervision needed

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📋 How to Do This Activity

Step 1

Cut the potato in half — each half becomes one battery cell

Step 2

Push a copper washer into one side and a zinc washer into the other side of each half

Step 3

Connect the copper of one cell to the zinc of the next using gator clips

Step 4

Attach the LED to the final terminals — positive to copper side, negative to zinc

Step 5

Observe the LED light up — the potato acts as the electrolyte generating current

🧠 What Your Child Will Learn

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Electricity Generation

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Chemical Energy

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Electric Circuits

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Conductors & Insulators

⚠️ Safety Notes

• Do not connect directly to mains electricity — use only the potato battery
• Handle gator clips carefully to avoid pinching fingers
• Dispose of potato pieces properly after the activity
• Adult guidance recommended when inserting metal washers into potato

📚 School Board Alignment

School Board	Topic Covered	Grade
NCERT/CBSE	Electricity, Electric Circuits	Grade 6
Samacheer Kalvi	Electricity and Circuits	Standard 6
Cambridge	Electricity, Energy	Stage 5–6
Oxford	Electricity, Circuits	Grade 5–6