Educational worksheet for classifying electrical conductors and insulators.

Let’s go step by step to figure out which objects are conductors and which are insulators.

First, remember:
- A conductor lets electricity flow through it easily. Metals like copper, iron, or aluminum are good conductors.
- An insulator does NOT let electricity flow through it. Things like rubber, plastic, paper, or wood are usually insulators.

Now let’s look at each object:

1. Paperclip (uncoated)
→ Made of metal (usually steel or iron).
→ Metal conducts electricity.
✔ So this is a conductor.

2. Eraser
→ Usually made of rubber or vinyl.
→ Rubber does not let electricity pass through.
✔ So this is an insulator.

3. Bank note
→ Made of paper (or sometimes polymer, but still non-metallic).
→ Paper doesn’t conduct electricity well — especially when dry.
✔ So this is an insulator.

4. Pencil
→ The outside is wood (insulator), but the inside has graphite (which can conduct electricity a little).
→ However, in most school experiments, pencils are treated as insulators because the wood covers the graphite and graphite isn’t a strong conductor like metal.
→ Also, if you’re testing with a simple circuit, the pencil likely won’t complete the circuit unless you expose the graphite and touch both ends directly.
✔ For this worksheet, we’ll say it’s an insulator.

Wait — let’s double-check the pencil. Some teachers might accept “graphite = conductor”, but since the question says “pencil” (not “graphite rod”), and it’s drawn as a whole pencil with wood around it, it’s safer to classify it as an insulator for basic circuits.

Also, the instructions say: “Include two objects of your choice and test these as well.” Since we’re just filling the table now, we’ll leave those blank for the student to add later.

So here’s the completed table:

| Object | Conductor | Insulator |
|--------------------|-----------|---------|
| paperclip (uncoated) | ✓ | |
| eraser | | ✓ |
| bank note | | ✓ |
| pencil | | ✓ |

Final Answer:
- Paperclip (uncoated): Conductor
- Eraser: Insulator
- Bank note: Insulator
- Pencil: Insulator