The Milky Way | Worksheet - Free Printable

You’ve uploaded an educational worksheet titled “Meet the Milky Way” — it’s not a math or logic problem to “solve,” but rather an informational reading and labeling activity designed to teach students about our galaxy, the Milky Way.

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✔ What the Worksheet Asks You to Do:

1. Read the text to learn facts about the Milky Way Galaxy.
2. Label the diagram of the Milky Way Galaxy using the terms provided in the word bank:
- Outer Arm
- Sagittarius Arm
- Perseus Arm
- Orion Arm
- Galactic Core
- Solar System (we are here!)

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🌌 Step-by-Step Solution & Explanation:

#### 🔹 Step 1: Understand the Structure of the Milky Way

The Milky Way is a spiral galaxy with:
- A central Galactic Core (dense center with a supermassive black hole).
- Several spiral arms radiating outward — these are where most stars, gas, and dust are located.
- Our Solar System is located in one of those spiral arms — the Orion Arm (also called the Orion Spur).

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#### 🔹 Step 2: Use the Diagram and Word Bank to Label

Looking at the image:

- The center of the spiral is labeled → Galactic Core
- The arms spiraling out from the core are labeled with blue dots pointing to them.

Here’s how to match the labels correctly based on astronomy knowledge and the diagram:

> ⚠️ *Note: In real astronomy, the Milky Way has major arms like Perseus, Sagittarius, and minor ones like Orion. The diagram shows 4 labeled arms plus the core.*

From the diagram (clockwise from top right):

1. Outer Arm → The farthest arm shown on the top right.
2. Sagittarius Arm → The arm just inside the Outer Arm, curving inward toward the core.
3. Perseus Arm → The large arm on the bottom left, opposite the Sagittarius Arm.
4. Orion Arm → The small spur between Sagittarius and Perseus — this is where our Solar System resides.
5. Galactic Core → Center of the galaxy.
6. Solar System (we are here!) → A dot near the Orion Arm, indicating our location.

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✍️ Final Labeled Answers (for the blanks):

Based on standard Milky Way structure and the diagram:

- The label pointing to the center: → Galactic Core
- The label pointing to the top-right outermost arm: → Outer Arm
- The label pointing to the arm just inside that, curving inward: → Sagittarius Arm
- The label pointing to the large arm on the bottom-left: → Perseus Arm
- The label pointing to the smaller arm between Sagittarius and Perseus: → Orion Arm
- The label pointing to the dot near Orion Arm: → Solar System (we are here!)

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📚 Bonus Facts from the Text:

- The Milky Way is ~100,000 light-years across.
- It contains ~200 billion stars.
- We’re in the Orion Arm, about 27,000 light-years from the center.
- Nearest big neighbor galaxy: Andromeda Galaxy.
- The “milky” band we see in the night sky is the combined light of billions of distant stars in the disk of our galaxy.

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✔ Final Answer Summary:

Correct Labels for the Diagram:

| Blue Dot Location | Label |
|--------------------------|---------------------------|
| Center of spiral | Galactic Core |
| Top-right outermost arm | Outer Arm |
| Arm just inside Outer | Sagittarius Arm |
| Bottom-left large arm | Perseus Arm |
| Small arm between others | Orion Arm |
| Dot near Orion Arm | Solar System (we are here!) |

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✔ This completes the worksheet! You’ve successfully labeled the parts of the Milky Way Galaxy based on scientific knowledge and the provided diagram.

Let me know if you’d like a printable version or quiz questions based on this! 🌟