This answer key breaks down the three main types of plate boundaries: convergent, divergent, and transform, showing how they move.

It looks like you've uploaded an image of a "Plate Tectonic Boundaries Sort – Answer Key" worksheet from a VA Science SOL 5.7e lesson. This is a matching or sorting activity that helps students understand the three main types of tectonic plate boundaries: Convergent, Divergent, and Transform.

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🔹 1. Convergent Boundary

- Definition: Two plates come together; one sliding under the other (subduction) or both rising up to cause mountains or volcanoes.
- Key Features:
- Plates collide.
- Can form mountains (e.g., Himalayas).
- Can create volcanoes if one plate subducts beneath another.
- Often causes earthquakes.

✔ Example: The collision between the Indian Plate and the Eurasian Plate formed the Himalayas.

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🔹 2. Divergent Boundary

- Definition: Two plates move apart, usually found under the ocean and cause magma to rise up, cool, and form ridges.
- Key Features:
- Plates move away from each other.
- Magma rises to fill the gap → forms new crust.
- Creates mid-ocean ridges (e.g., Mid-Atlantic Ridge).
- Often has underwater volcanic activity.

✔ Example: The Mid-Atlantic Ridge where the North American and Eurasian Plates are moving apart.

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🔹 3. Transform Boundary

- Definition: Two plates slide past each other in opposite directions. The sudden release of energy causes earthquakes.
- Key Features:
- Plates grind past each other horizontally.
- No creation or destruction of crust.
- Causes frequent earthquakes.
- Example: San Andreas Fault in California.

✔ Example: The San Andreas Fault — where the Pacific Plate and North American Plate slide past each other.

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📌 Summary Table:

| Boundary Type | Movement | Resulting Features |
|------------------|--------------------|----------------------------------------|
| Convergent | Plates collide | Mountains, volcanoes, earthquakes |
| Divergent | Plates move apart | Ocean ridges, new crust, volcanoes |
| Transform | Plates slide past | Earthquakes, no new crust formed |

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✔ How to Use This Answer Key:

This key is likely used to match descriptions with the correct boundary type. For example:
- If a card says "Plates move apart and form new ocean floor," it goes with Divergent.
- If a card says "Plates collide and form mountains," it goes with Convergent.
- If a card says "Plates slide past each other causing earthquakes," it goes with Transform.

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