Conductors vs. Insulators worksheet - Free Printable

Let’s go through each item one by one. We need to decide if it’s a conductor (C) or an insulator (I).

Remember:
- A conductor lets electricity flow through it easily — usually metals like copper, iron, aluminum.
- An insulator does NOT let electricity flow — things like rubber, plastic, wood, glass, cloth.

---

1. Towel → Made of fabric (cloth). Cloth doesn’t conduct electricity.
→ I

2. Bicycle tire → Made of rubber. Rubber is a good insulator.
→ I

3. Scissors → Usually made of metal (steel). Metal conducts electricity.
→ C

4. Glass cup → Glass does not conduct electricity.
→ I

5. Basketball → Made of rubber and air inside. Both are insulators.
→ I

6. Coiled copper wire → Copper is one of the best conductors!
→ C

7. Metal chain → Made of metal links. Metal conducts electricity.
→ C

8. Baseball bat → Usually made of wood or aluminum. If it’s wood → insulator. If aluminum → conductor. But in most school contexts, unless specified, we assume wooden bat for safety/simple examples. Let’s check: The image shows a brown bat with a handle — likely wood.
→ I *(Note: If it were metal, it would be C — but based on typical classroom use and appearance, we’ll say I)*

Wait — let me double-check #8. In many worksheets, baseball bats are shown as wood unless stated otherwise. Wood = insulator. So yes → I

9. Eraser → Made of rubber or vinyl. Doesn’t conduct electricity.
→ I

10. Balloon → Made of rubber/latex. Insulator.
→ I

---

Final check:

1. Towel → I
2. Tire → I
3. Scissors → C
4. Glass → I
5. Basketball → I
6. Copper coil → C
7. Chain → C
8. Bat → I (wood)
9. Eraser → I
10. Balloon → I

All make sense.

Final Answer:
1. I
2. I
3. C
4. I
5. I
6. C
7. C
8. I
9. I
10. I