Educational worksheet on metal and non-metal properties with practical examples.

Problem Analysis:

The worksheet consists of two main sections:
1. Section 1: Identifying properties that apply to metals and/or non-metals.
2. Section 2: Completing words to describe the properties of materials used in specific applications.

Let's solve each section step by step.

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Section 1: Properties of Metals and Non-Metals

We need to determine which properties apply to metals and/or non-metals and mark the appropriate boxes.

#### Properties:
- a. Most are good conductors of electricity.
- Metals: Yes (Metals are excellent conductors of electricity.)
- Non-metals: No (Most non-metals are poor conductors; exceptions like graphite exist but are not typical.)

- b. Most are flexible solids.
- Metals: Yes (Metals are generally malleable and flexible.)
- Non-metals: No (Non-metals are typically brittle or rigid.)

- c. Most are shiny when polished.
- Metals: Yes (Metals have a characteristic luster when polished.)
- Non-metals: No (Most non-metals are not shiny, though some like diamond can be reflective.)

- d. Tend to be brittle solids that break rather than bend.
- Metals: No (Metals are ductile and malleable, not brittle.)
- Non-metals: Yes (Many non-metals, like glass or ceramics, are brittle.)

- e. Mostly poor conductors of heat.
- Metals: No (Metals are excellent conductors of heat.)
- Non-metals: Yes (Most non-metals are poor conductors of heat.)

- f. All but one are solids at room temperature.
- Metals: Yes (Most metals are solids at room temperature, with mercury being the exception.)
- Non-metals: No (Many non-metals are gases or liquids at room temperature, e.g., hydrogen, oxygen.)

- g. Some are gases.
- Metals: No (Metals are almost always solids at room temperature.)
- Non-metals: Yes (Many non-metals are gases, e.g., hydrogen, oxygen, nitrogen.)

#### Marked Boxes:
- Metal: a, b, c, f
- Non-metal: d, e, g

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Section 2: Properties of Materials Used in Specific Applications

We need to complete the words that describe the properties of the materials being used.

#### Image 1: Aluminium is used for cooking pots.
- Property: Aluminium is a good conductor of heat.
- Answer: c = conductor, of = heat

#### Image 2: Iron is used for bridges.
- Property: Iron is strong.
- Answer: s = strong

#### Image 3: Silver is used for mirrors.
- Property: Silver is reflective.
- Answer: s = reflective

#### Image 4: Silver is bent to make jewellery.
- Property: Silver is malleable.
- Answer: f = malleable

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Final Answers:

#### Section 1:
- Metal: a, b, c, f
- Non-metal: d, e, g

#### Section 2:
1. Aluminium is used for cooking pots as it is a good conductor of heat.
- c = conductor, of = heat
2. Iron is used for bridges as it is: strong.
- s = strong
3. Silver is used for mirrors as it is: reflective.
- s = reflective
4. Silver is bent to make jewellery as it is: malleable.
- f = malleable

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Boxed Final Answer:

\[
\boxed{
\text{Section 1: Metal (a, b, c, f), Non-metal (d, e, g)} \\
\text{Section 2: c = conductor, of = heat; s = strong; s = reflective; f = malleable}
}
\]