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It looks like you've uploaded a worksheet titled "Metals shine" from a science activity, likely aimed at primary or early secondary school students. The goal of the activity is to investigate whether different objects are made of metal by testing their properties—specifically:

1. Magnetism – Does it attract a magnet?
2. Conductivity – Can electricity pass through it? (using a circuit test)
3. Appearance – Does it look shiny?

There's also a section for science investigation, where students are prompted to think about how they can use these tests to determine if an object is made of metal.

Let’s walk through how to solve this task and explain the solution step-by-step.

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🔍 Background Knowledge Summary

- Metals often have certain physical properties:
- They are shiny.
- They are magnetic (only some metals like iron, nickel, cobalt).
- They conduct electricity.
- They are usually solid at room temperature.

But not all shiny things are metals (e.g., plastic can be shiny), and not all metals are magnetic (e.g., aluminum isn’t magnetic).

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🧪 Experiment: Test Objects

You’re asked to test five objects (Object 1 to Object 5) using three tests:

| Object | Is it attracted to a magnet? | Can electricity pass through it? | Does it look shiny? |
|-------|-------------------------------|----------------------------------|----------------------|
| 1 | Yes / No | Yes / No | Yes / No |
| 2 | Yes / No | Yes / No | Yes / No |
| 3 | Yes / No | Yes / No | Yes / No |
| 4 | Yes / No | Yes / No | Yes / No |
| 5 | Yes / No | Yes / No | Yes / No |

Then answer: Which ones are probably made of metal?

> ✔ How to interpret results:
> - If an object is magnetic, conducts electricity, and looks shiny, it's very likely metal.
> - If it fails any of these (especially conductivity or magnetism), it might not be metal.

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💡 Example Answers (Hypothetical)

Let’s assume the following results were obtained (since no actual image data is provided):

| Object | Magnet? | Conducts Electricity? | Shiny? | Likely Metal? |
|--------|---------|------------------------|--------|---------------|
| 1 | Yes | Yes | Yes | ✔ Yes |
| 2 | No | Yes | Yes | ⚠️ Possibly (e.g., aluminum) |
| 3 | No | No | No | ✘ No |
| 4 | Yes | No | No | ✘ No |
| 5 | No | Yes | Yes | ⚠️ Possibly |

> 🔎 Explanation:
> - Object 1: All three properties → Definitely metal (e.g., iron).
> - Object 2: Not magnetic but conducts and shines → Could be aluminum or copper.
> - Object 3: No conductivity or shine → Not metal (e.g., wood or plastic).
> - Object 4: Magnetic but doesn't conduct or shine → Not metal (e.g., magnetic plastic toy).
> - Object 5: Conducts and shiny but not magnetic → Could be non-magnetic metal (like brass or copper).

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🧠 Science Investigation Prompt

> "Think about how you could use your knowledge to identify materials."

✔ Answer Guidance:
- Use multiple tests together.
- One test alone isn’t enough (e.g., something shiny might be plastic).
- A good way to identify metal is to check if it conducts electricity — most metals do, while non-metals usually don’t.
- But remember: not all metals are magnetic, so lack of magnetism doesn’t rule out metal.

👉 So, the best test for metal is electrical conductivity, combined with appearance.

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✔ Final Answer (Based on Typical Results)

If you filled in the table correctly and used logic:
> Objects that are likely made of metal:
> Those that are conductive, shiny, and possibly magnetic.

For example:
> “Object 1 and Object 2 are probably made of metal because they conduct electricity and look shiny.”

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📝 Summary

- Metals typically:
- Look shiny
- Conduct electricity
- May or may not be magnetic
- To confirm an object is metal, use multiple tests.
- Best test: Electrical conductivity (most reliable).
- Magnetism alone is not sufficient (many non-metals aren’t magnetic, and some metals aren’t either).

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🎯 Conclusion

The purpose of this worksheet is to teach scientific inquiry and critical thinking by:
- Observing properties,
- Testing hypotheses,
- Drawing conclusions based on evidence.

> ✔ Final Answer: The objects that conduct electricity and look shiny are likely made of metal. Even if they aren’t magnetic, they could still be metal (like aluminum or copper). Always use more than one test to make a conclusion.

Let me know if you'd like help filling in a specific table based on real results!