Electricity: Circuits and Their Components Part 2 | Class 7 Science | NCERT Animation

Electricity: Circuits and Their Components (Part 2) | Class 7 Science | NCERT | Animated Explanation | Exam 2026

Welcome to Matrix Motion – where Science becomes easy, visual, and exciting!

In this video, we continue Class 7 Science – Chapter 3: Electricity: Circuits and Their Components (Part 2) from NCERT. This chapter helps us understand how electric circuits actually work, why bulbs glow, how switches control electricity, what circuit diagrams mean, and why some materials conduct electricity while others do not. Through fun activities and experiments, you will learn science in the easiest and most engaging way!

This video is perfect for:
1️⃣ Class 7 Science students
2️⃣ Classes 6–8 for concept clarity
3️⃣ School exams + foundation learning
Why This Video is Special?

1️⃣ Wonderful animated experiments & visual explanations
2️⃣ Practical activities explained step by step
3️⃣ Easy concepts with real-life examples
4️⃣ NCERT-based & exam-oriented learning
5️⃣ Perfect for quick revision + deep understanding

📚 What You Will Learn in This Video

1️⃣ Making an Electric Lamp Glow

1. How to make a bulb glow using a cell or battery
2. Required materials: cell, wires, bulb, holders
3. Correct wire connection and closed circuit
4. Why some arrangements work and others fail

2️⃣ Understanding an Electrical Circuit

1. Meaning of an electric circuit
2. Flow of current in a complete path
3. Direction of electric current
4. Why bulbs sometimes fuse

3️⃣ LED Experiment & Polarity

1. Difference between LED and incandescent lamp
2. Long wire and short wire connection
3. Correct vs wrong polarity
4. Why LED glows only in one direction

4️⃣ Electric Switch – ON & OFF

1. Making a simple switch using safety pin & cardboard
2. Open circuit vs closed circuit
3. How a switch controls current flow
4. Real-life examples (fan, TV, light switch)

5️⃣ Circuit Diagrams & Electrical Symbols

1. What is a circuit diagram?
2. Symbols of electric cell, battery, bulb & LED
3. Switch ON/OFF symbols
4. Universal language of electric circuits

6️⃣ Drawing Circuit Diagrams

1. Converting real circuits into symbols
2. Understanding current flow easily
3. Practice through simple activities

7️⃣ Conductors & Insulators of Electricity

1. What are electrical conductors?
2. Why metals conduct electricity
3. Why rubber & plastic do not conduct electricity
4. Importance of safety in electric wires

8️⃣ Conduction Tester Activity

1. Testing objects like coins, keys, rubber & wood
2. Which materials allow electricity to pass?
3. Observations and conclusions

9️⃣ Why Electric Wires are Covered?

1. Copper as a conductor
2. Plastic and rubber as insulators
3. Protection from electric shock

🔟 Electrical Safety Rules

1. Never touch switches with wet hands
2. Stay away from damaged wires
3. Importance of insulation
4. How electricity can affect our body
Why You MUST Watch This Video?

✔ NCERT-based & exam-focused
✔ Practical science explained visually
✔ Step-by-step activities for easy learning
✔ Strong concept clarity for school exams
Watch till the end and test your knowledge in comments!
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Keep Learning. Keep Exploring.
Science becomes exciting when you understand how things actually work!

Timestamps

Timestamps

0:00 — Making an Electric Lamp Glow Using an Cell Or Battery

2:27 — An Electrical Circuit

5:16 — An Electric Switch

5:29— Activity 3.8: Build Your Own

7:31 — Circuit Diagrams

8:55 — Activity 3.10: Let Us Do

10:07 — Electrical Conductors & Insulators

13:16 — OUTRO

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