Physical and Chemical Properties Worksheet | Study notes Physical ... - Free Printable

Let's solve this Physical and Chemical Properties Worksheet step by step.

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🔍 Understanding the Concepts:

- Physical properties are characteristics that can be observed or measured without changing the substance’s chemical identity.
Examples: color, density, melting point, solubility, hardness, odor, luster, etc.

- Chemical properties describe how a substance interacts with other substances to form new substances (chemical reactions).
Examples: flammability, reactivity with water, rusting, combustion, etc.

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Now, let's classify each property:

| Property | Physical Property | Chemical Property |
|-----------------------------|-------------------|-------------------|
| Blue color | ✔ | |
| Density | ✔ | |
| Flammability | | ✔ |
| Dissolves in water | ✔ | |
| Boils at 100 degrees | ✔ | |
| Scratches glass | ✔ | |
| Sour taste | ✔ | |
| Rusting | | ✔ |
| Exploding fireworks | | ✔ |
| Melting point | ✔ | |
| Reacts with H₂O to form gas | | ✔ |
| Reacts with something to form H₂O | | ✔ |
| Hardness | ✔ | |
| Boiling point | ✔ | |
| Luster (shine) | ✔ | |
| Odor | ✔ | |

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✔ Explanation for Each:

1. Blue color – Observable without changing substance → Physical
2. Density – Mass/volume; measurable without reaction → Physical
3. Flammability – Ability to burn (undergo combustion) → Chemical
4. Dissolves in water – Solubility; physical change (no new substance formed) → Physical
5. Boils at 100 degrees – Phase change; no chemical change → Physical
6. Scratches glass – Measures hardness; physical interaction → Physical
7. Sour taste – Sensory property; doesn't alter substance chemically → Physical
8. Rusting – Iron reacts with oxygen to form iron oxide → Chemical
9. Exploding fireworks – Involves rapid chemical reactions producing light/sound → Chemical
10. Melting point – Temperature at which solid becomes liquid → Physical
11. Reacts with H₂O to form gas – New substance formed → Chemical
12. Reacts with something to form H₂O – Formation of a new compound → Chemical
13. Hardness – Resistance to scratching → Physical
14. Boiling point – Temperature at which liquid turns to gas → Physical
15. Luster (shine) – How it reflects light → Physical
16. Odor – Smell; detectable without altering substance → Physical

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✔ Final Answer Table:

| Property | Physical Property | Chemical Property |
|-----------------------------|-------------------|-------------------|
| Blue color | ✔ | |
| Density | ✔ | |
| Flammability | | ✔ |
| Dissolves in water | ✔ | |
| Boils at 100 degrees | ✔ | |
| Scratches glass | ✔ | |
| Sour taste | ✔ | |
| Rusting | | ✔ |
| Exploding fireworks | | ✔ |
| Melting point | ✔ | |
| Reacts with H₂O to form gas | | ✔ |
| Reacts with something to form H₂O | | ✔ |
| Hardness | ✔ | |
| Boiling point | ✔ | |
| Luster (shine) | ✔ | |
| Odor | ✔ | |

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✔ Summary:
- Physical Properties: 12 items
- Chemical Properties: 4 items

This classification helps distinguish observable traits from reactive behaviors — essential in chemistry!