Matching worksheet for properties of matter, including physical and chemical properties.

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Task:

Match the following definitions (on the right) with the correct property (on the left), and indicate whether each property is physical or chemical.

#### Properties List (Left Column):
1. Solubility
2. Density
3. Flammability
4. Melting point
5. Reactivity
6. Viscosity
7. Boiling point
8. Color
9. Odor
10. Conductivity

#### Definitions (Right Column):
1. The property of a substance that measures its resistance to flowing.
2. The ability of a substance to dissolve in another substance.
3. The ability of a substance to be stretched into a long wire shape.
4. The property of a substance that indicates the amount of mass per unit volume.
5. The ability of an object to be hammered into a sheet.
6. The ability of a substance to react with acid.
7. The amount of heat that can pass through an object.
8. The amount of energy needed to change a substance from solid to liquid.
9. The temperature at which a substance changes from a liquid to a gas.
10. The property of a substance that describes how it interacts with light.
11. The property of a substance that indicates its tendency to burn.
12. The temperature at which a substance melts.
13. The amount of heat that can pass through a substance.
14. The color of a substance.
15. The odor of a substance.
16. The ability of a substance to conduct electricity.
17. The texture of a substance as experienced by the touch.
18. The amount of a light ray reflected by an object and perceived by the eye.
19. The temperature at which a substance changes from a liquid to a gas.
20. The temperature of a substance in a magnetic field.

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Let’s go step-by-step and match each definition to the correct property and classify it as physical or chemical.

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Step 1: Understand Physical vs. Chemical Properties

- Physical properties can be observed or measured without changing the substance’s chemical identity.
- Examples: color, density, melting point, solubility, conductivity, viscosity, etc.

- Chemical properties describe how a substance interacts with other substances or undergoes a chemical change.
- Examples: flammability, reactivity with acid, corrosiveness, etc.

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Now, Match Each Definition:

| # | Definition | Property | Type |
|---|----------|---------|------|
| 1 | Resistance to flowing | Viscosity | Physical |
| 2 | Ability to dissolve in another substance | Solubility | Physical |
| 3 | Ability to be stretched into a long wire shape | Malleability | Physical *(Note: Not listed, but likely intended for "ductility")* |
| 4 | Mass per unit volume | Density | Physical |
| 5 | Ability to be hammered into a sheet | Malleability | Physical |
| 6 | Ability to react with acid | Reactivity | Chemical |
| 7 | Amount of heat passing through an object | Thermal conductivity | Physical |
| 8 | Energy needed to change from solid to liquid | Heat of fusion | Physical |
| 9 | Temperature at which a substance changes from liquid to gas | Boiling point | Physical |
|10 | How it interacts with light | Luster / Reflectivity | Physical |
|11 | Tendency to burn | Flammability | Chemical |
|12 | Temperature at which a substance melts | Melting point | Physical |
|13 | Amount of heat passing through a substance | Thermal conductivity | Physical |
|14 | Color of a substance | Color | Physical |
|15 | Odor of a substance | Odor | Physical |
|16 | Ability to conduct electricity | Conductivity | Physical |
|17 | Texture as felt by touch | Texture | Physical |
|18 | Amount of light reflected | Reflectivity / Luster | Physical |
|19 | Temperature at which a substance changes from liquid to gas | Boiling point | Physical |
|20 | Temperature in a magnetic field | Not a standard property | N/A |

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Now, Match Definitions to Given Properties (Only the 10 listed):

We need to match only the 10 properties listed on the left:
1. Solubility
2. Density
3. Flammability
4. Melting point
5. Reactivity
6. Viscosity
7. Boiling point
8. Color
9. Odor
10. Conductivity

So let's map only those:

| Definition | Matching Property | Type |
|-----------|------------------|------|
| 1. Resistance to flowing → Viscosity | ✔ | Physical |
| 2. Ability to dissolve → Solubility | ✔ | Physical |
| 4. Mass per unit volume → Density | ✔ | Physical |
| 6. Reacts with acid → Reactivity | ✔ | Chemical |
| 8. Energy to melt → Melting point? Wait — no! This is heat of fusion, not melting point. But melting point is the *temperature*, not the energy. So mismatch. Let’s check: |
| 12. Temperature at which a substance melts → Melting point | ✔ | Physical |
| 9. Temp to change liquid to gas → Boiling point | ✔ | Physical |
| 14. Color → Color | ✔ | Physical |
| 15. Odor → Odor | ✔ | Physical |
| 16. Conduct electricity → Conductivity | ✔ | Physical |
| 11. Tendency to burn → Flammability | ✔ | Chemical |

Wait — definition #11 is “tendency to burn” → Flammability

But note: Reactivity (definition #6) is broader than flammability, but both are chemical.

Also, definition #1 is viscosity, which matches property #6.

So now let’s do the final matching:

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✔ Final Matching Table:

| Definition Number | Definition | Matches Property | Type |
|-------------------|-----------|------------------|------|
| 1 | Resistance to flowing | Viscosity | Physical |
| 2 | Ability to dissolve | Solubility | Physical |
| 4 | Mass per unit volume | Density | Physical |
| 6 | Reacts with acid | Reactivity | Chemical |
| 8 | Energy to melt (not temp) | ✘ Not directly matched (but related to melting point) | — |
| 9 | Temp liquid → gas | Boiling point | Physical |
| 11 | Tendency to burn | Flammability | Chemical |
| 12 | Temp solid → liquid | Melting point | Physical |
| 14 | Color | Color | Physical |
| 15 | Odor | Odor | Physical |
| 16 | Conduct electricity | Conductivity | Physical |

> Note: Definitions #3, #5, #7, #10, #13, #17, #18, #20 are not among the 10 listed properties, so they are extra distractors.

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✔ Correct Answers:

Now, assuming the task is to match the definitions to the 10 given properties, here’s the correct mapping:

| Property | Definition Number(s) | Type |
|--------|----------------------|------|
| Solubility | 2 | Physical |
| Density | 4 | Physical |
| Flammability | 11 | Chemical |
| Melting point | 12 | Physical |
| Reactivity | 6 | Chemical |
| Viscosity | 1 | Physical |
| Boiling point | 9 | Physical |
| Color | 14 | Physical |
| Odor | 15 | Physical |
| Conductivity | 16 | Physical |

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🔍 Summary:

- Physical properties: Solubility, Density, Viscosity, Melting point, Boiling point, Color, Odor, Conductivity
- Chemical properties: Flammability, Reactivity

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📝 Final Answer (Matching):

| Property | Definition # | Type |
|--------|-------------|------|
| Solubility | 2 | Physical |
| Density | 4 | Physical |
| Flammability | 11 | Chemical |
| Melting point | 12 | Physical |
| Reactivity | 6 | Chemical |
| Viscosity | 1 | Physical |
| Boiling point | 9 | Physical |
| Color | 14 | Physical |
| Odor | 15 | Physical |
| Conductivity | 16 | Physical |

> Note: Some definitions (e.g., #3, #5, #7, #10, #13, #17, #18, #20) don’t match any of the 10 listed properties and may be extra or for another section.

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If you can provide the exact format of the worksheet (e.g., fill-in-the-blank, numbered list), I can adjust accordingly. But this should be the complete solution based on standard chemistry knowledge.