Metals Facts & Worksheets | Discovery, Charateristics, Uses - Free Printable

Task: Fill in the table with metal properties and their descriptions.

The table provided lists several properties of metals, and some descriptions are already filled in. We need to complete the missing descriptions for each property. Here is the completed table with explanations:

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#### Completed Table

| Properties of Metals | Description |
|----------------------|-------------|
| Hardness | The ability of a metal to resist deformation, indentation, or scratching. Hard metals are difficult to scratch or dent. |
| Brittleness | The tendency of a metal to break or shatter under stress without significant deformation. Brittle metals do not bend easily and can fracture suddenly. |
| Malleability | The ability to be rolled, pressed, or hammered into different shapes without breaking, shattering, or having any other negative effects. Malleable metals can be flattened into thin sheets. |
| Ductility | The ability of a metal to be stretched into wires or thin filaments without breaking. Ductile metals can be drawn into long, thin shapes. |
| Elasticity | The ability of a metal to return to its original shape after being deformed or stretched. Elastic metals can withstand bending or stretching and recover their form when the force is removed. |
| Toughness | Metals may be stretched or otherwise bent without breaking, and can survive tearing or shearing. Tough metals combine strength and ductility, resisting both fracture and deformation. |
| Density | The mass per unit volume of a metal. Density is a measure of how heavy a metal is compared to its size. |
| Melting Point | The capacity of a metal to turn into a liquid when heated. The melting point is the temperature at which a solid metal becomes a liquid. |
| Conductivity | The ability of a metal to conduct heat or electricity efficiently. Conductive metals allow heat or electrical current to pass through them easily. |

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Explanation of Each Property:

1. Hardness:
- Hardness refers to a metal's resistance to deformation, indentation, or scratching. Hard metals are durable and resistant to wear and tear. For example, tungsten is very hard and is used in drill bits.

2. Brittleness:
- Brittleness describes a metal's tendency to break or shatter under stress without significant deformation. Brittle metals lack flexibility and cannot be bent easily. Glass (though not a metal) is an example of a brittle material.

3. Malleability:
- Malleability is the ability of a metal to be shaped by hammering, rolling, or pressing into thin sheets. Gold and silver are highly malleable and can be beaten into very thin foils.

4. Ductility:
- Ductility is the ability of a metal to be stretched into wires or thin filaments without breaking. Copper and aluminum are ductile metals commonly used in wiring.

5. Elasticity:
- Elasticity refers to a metal's ability to return to its original shape after being deformed or stretched. Steel is an elastic metal that can withstand bending and still recover its form.

6. Toughness:
- Toughness combines strength and ductility, allowing a metal to resist both fracture and deformation. Tough metals can absorb energy without breaking. Stainless steel is an example of a tough metal.

7. Density:
- Density is the mass per unit volume of a metal. It indicates how heavy a metal is relative to its size. Lead is a dense metal, while aluminum is relatively lightweight.

8. Melting Point:
- The melting point is the temperature at which a solid metal turns into a liquid. Different metals have different melting points; for example, mercury has a low melting point and is liquid at room temperature, while iron has a high melting point.

9. Conductivity:
- Conductivity refers to a metal's ability to conduct heat or electricity. Good conductors allow heat or electrical current to pass through them efficiently. Copper is an excellent conductor of electricity, making it ideal for electrical wiring.

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Final Answer:

\boxed{
\begin{array}{|c|c|}
\hline
\text{Properties of Metals} & \text{Description} \\
\hline
\text{Hardness} & \text{The ability of a metal to resist deformation, indentation, or scratching. Hard metals are difficult to scratch or dent.} \\
\hline
\text{Brittleness} & \text{The tendency of a metal to break or shatter under stress without significant deformation. Brittle metals do not bend easily and can fracture suddenly.} \\
\hline
\text{Malleability} & \text{The ability to be rolled, pressed, or hammered into different shapes without breaking, shattering, or having any other negative effects. Malleable metals can be flattened into thin sheets.} \\
\hline
\text{Ductility} & \text{The ability of a metal to be stretched into wires or thin filaments without breaking. Ductile metals can be drawn into long, thin shapes.} \\
\hline
\text{Elasticity} & \text{The ability of a metal to return to its original shape after being deformed or stretched. Elastic metals can withstand bending or stretching and recover their form when the force is removed.} \\
\hline
\text{Toughness} & \text{Metals may be stretched or otherwise bent without breaking, and can survive tearing or shearing. Tough metals combine strength and ductility, resisting both fracture and deformation.} \\
\hline
\text{Density} & \text{The mass per unit volume of a metal. Density is a measure of how heavy a metal is compared to its size.} \\
\hline
\text{Melting Point} & \text{The capacity of a metal to turn into a liquid when heated. The melting point is the temperature at which a solid metal becomes a liquid.} \\
\hline
\text{Conductivity} & \text{The ability of a metal to conduct heat or electricity efficiently. Conductive metals allow heat or electrical current to pass through them easily.} \\
\hline
\end{array}
}