This printable worksheet helps students identify the four main layers of the Earth and their sub-layers using labeled diagrams and a word bank.

Problem Overview:

The task is to identify the layers and sub-layers of the Earth based on the provided diagram. The diagram shows a cross-section of the Earth with numbered labels, and we need to match these numbers with the correct layer names listed below the diagram.

Diagram Analysis:

1. Circular Diagram (Top):
- This shows a simplified view of the Earth's layers.
- Numbers 1 to 4 are labeled on different parts of the Earth.

2. Cross-Section Diagram (Bottom):
- This provides a detailed view of the Earth's layers.
- Numbers 5 to 11 are labeled on different sections of the Earth.

3. Layer Names:
- Mantle
- Lower Mantle
- Inner Core
- Asthenosphere
- Core
- Upper Mantle
- Outer Core
- Crust
- Lithosphere (Crust + Uppermost solid mantle)

Solution Approach:

We will analyze each numbered section in both diagrams and match them with the correct layer names.

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#### Circular Diagram (Top):
1. Number 1: This is the outermost layer, which is the Crust.
2. Number 2: This is the next layer inward, which is part of the Mantle.
3. Number 3: This is the next layer inward, which is the Core.
4. Number 4: This is the innermost layer, which is the Inner Core.

---

#### Cross-Section Diagram (Bottom):
5. Number 5: This is the outermost layer, which is the Crust.
6. Number 6: This is the layer just below the crust, which is the Upper Mantle.
7. Number 7: This is the layer below the upper mantle, which is the Lower Mantle.
8. Number 8: This is the Asthenosphere, which is a part of the upper mantle.
9. Number 9: This is the boundary between the mantle and the core, which is part of the Mantle.
10. Number 10: This is the Outer Core.
11. Number 11: This is the Inner Core.

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#### Matching Layers:
- Crust: Numbers 1 and 5.
- Upper Mantle: Number 6.
- Lower Mantle: Number 7.
- Asthenosphere: Number 8.
- Mantle: Numbers 2, 7, 8, and 9.
- Core: Numbers 3, 10, and 11.
- Outer Core: Number 10.
- Inner Core: Number 11.
- Lithosphere: Comprises the Crust (Numbers 1 and 5) and the Uppermost solid mantle (part of Number 6).

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Final Answer:

\[
\boxed{
\begin{array}{ll}
1 & \text{Crust} \\
2 & \text{Mantle} \\
3 & \text{Core} \\
4 & \text{Inner Core} \\
5 & \text{Crust} \\
6 & \text{Upper Mantle} \\
7 & \text{Lower Mantle} \\
8 & \text{Asthenosphere} \\
9 & \text{Mantle} \\
10 & \text{Outer Core} \\
11 & \text{Inner Core} \\
\end{array}
}
\]