Layers Of The Earth Worksheets 2024 - Free Printable

I will solve this problem by matching the descriptions of the Earth's layers with their correct names, using the diagram provided in the image as a reference. I'll go through each description one by one.

First, look closely:

The image is a worksheet titled "Our Earth" that asks to match four descriptions with the correct layer names: Inner Core, Outer Core, Mantle, and Crust. The diagram on the left shows a cross-section of the Earth with these four layers labeled from the center outwards.

- Top-left description: Talks about a layer that makes up two-thirds of Earth's mass, is 1,800 miles deep, and is made of thick, solid, rocky substance.
- Top-right description: Describes a layer that is surprisingly solid, furthest from the surface, and beneath what's thought to be molten lava.
- Bottom-left description: Describes the hard, thinnest layer composed of different minerals.
- Bottom-right description: Talks about a layer at 3,000 miles depth, made of super-heated liquid molten lava, mostly iron and nickel.

Now, I will match each description to its correct layer name based on geological knowledge and the diagram.

Next, find information:

I don't need to use any external tools for this because the answer can be deduced from the provided diagram and general knowledge of Earth's structure.

Then, review the findings:

Let me match each description:

1. Top-left description ("makes up two-thirds of the Earth’s mass... 1,800 miles deep... thick, solid, rocky substance"): This matches the Mantle, which is the largest layer by volume (about 84% of Earth's volume, close to two-thirds of its mass) and lies between the crust and outer core. It's mostly solid but can flow over long periods.

2. Top-right description ("surprisingly solid... furthest from the surface... beneath what’s thought to be molten lava"): This refers to the Inner Core. Although it's under extreme heat, the immense pressure keeps it solid. It's the innermost layer, beneath the liquid outer core.

3. Bottom-left description ("hard and composed of different minerals... thinnest layer"): This is clearly the Crust, the outermost and thinnest layer of the Earth, made of various rocks and minerals.

4. Bottom-right description ("at a depth of 3000 miles... super-heated liquid molten lava... mostly iron and nickel"): This describes the Outer Core, which is a liquid layer composed mainly of iron and nickel, located beneath the mantle and surrounding the inner core.

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Final Answer:

Here are the correct names for each description:

- Top-left box: Mantle
- Top-right box: Inner Core
- Bottom-left box: Crust
- Bottom-right box: Outer Core

This matches the standard model of Earth's layers shown in the diagram, where from the center outward: Inner Core → Outer Core → Mantle → Crust.