This worksheet helps students identify and label the four main layers of the Earth: the crust, mantle, outer core, and inner core.

Problem Analysis:

The task involves labeling a diagram of the Earth's structure and completing a text using specific vocabulary related to Earth's layers. The provided vocabulary includes terms like "mantle," "outer core," "crust," "inner core," etc.

Step-by-Step Solution:

#### Part 1: Labeling the Diagram
The diagram shows a cross-section of the Earth with different layers. We need to label these layers using the given vocabulary: mantle, outer core, crust, inner core.

1. Crust: This is the outermost layer of the Earth, which is relatively thin compared to the other layers. It is depicted as the greenish layer at the top.
2. Mantle: This layer lies beneath the crust and extends deep into the Earth. It is shown as the yellow layer in the diagram.
3. Outer Core: This layer is located below the mantle and is depicted as the orange layer. It is known to be liquid.
4. Inner Core: This is the central part of the Earth, shown as the red sphere in the center. It is solid.

Labeling the Diagram:
- Top layer (greenish): Crust
- Next layer (yellow): Mantle
- Layer below mantle (orange): Outer Core
- Central part (red): Inner Core

#### Part 2: Completing the Text
The text describes the structure of the Earth using the provided vocabulary. We need to fill in the blanks appropriately.

The text reads:
> Earth is made up of four layers. At the centre of our planet is the ________ which is as hot as the surface of the ________. It is made of metals, mainly ________ and ________. The ________ core is liquid while the inner core is ________ metal. Above this is the ________ which contains hot molten rock called ________. The ________, where we live, is the thinnest layer and is made of ________ and soil.

Let's fill in the blanks step by step:

1. At the centre of our planet is the ________: The center of the Earth is the inner core.
2. which is as hot as the surface of the ________: The inner core is as hot as the surface of the sun.
3. It is made of metals, mainly ________ and ________: The inner core is primarily composed of iron and nickel.
4. The ________ core is liquid: The outer core is liquid.
5. while the inner core is ________ metal: The inner core is solid metal.
6. Above this is the ________: Above the outer core is the mantle.
7. which contains hot molten rock called ________: The mantle contains hot molten rock called magma.
8. The ________, where we live, is the thinnest layer: The layer where we live is the crust.
9. and is made of ________ and soil: The crust is made of rocks and soil.

Completed Text:
> Earth is made up of four layers. At the centre of our planet is the inner core which is as hot as the surface of the sun. It is made of metals, mainly iron and nickel. The outer core is liquid while the inner core is solid metal. Above this is the mantle which contains hot molten rock called magma. The crust, where we live, is the thinnest layer and is made of rocks and soil.

Final Answer:

#### Diagram Labels:
1. Top layer (greenish): Crust
2. Next layer (yellow): Mantle
3. Layer below mantle (orange): Outer Core
4. Central part (red): Inner Core

#### Completed Text:
> Earth is made up of four layers. At the centre of our planet is the inner core which is as hot as the surface of the sun. It is made of metals, mainly iron and nickel. The outer core is liquid while the inner core is solid metal. Above this is the mantle which contains hot molten rock called magma. The crust, where we live, is the thinnest layer and is made of rocks and soil.

Final Answer Box:
\boxed{\text{Crust, Mantle, Outer Core, Inner Core}}
\boxed{\text{inner core, sun, iron, nickel, outer, solid, mantle, magma, crust, rocks}}