Plate Boundary Worksheet | PDF - Free Printable

Plate Boundary Worksheet Solution and Explanation

#### Part 1: Label Each Figure by Writing the Type of Plate Boundary It Shows
We need to identify the type of plate boundary shown in each figure.

1. Figure 1:
- The two plates are moving apart from each other, creating a gap or rift.
- Type of Boundary: Divergent Boundary

2. Figure 2:
- One plate is subducting (sinking) beneath another plate, forming a deep trench.
- Type of Boundary: Convergent Boundary (Subduction Zone)

3. Figure 3:
- The two plates are sliding past each other horizontally without any significant vertical movement.
- Type of Boundary: Transform Boundary

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#### Part 2: Answer the Questions About Plate Boundaries

4. What type of boundary/boundaries create(s) new seafloor?
- New seafloor is created when two tectonic plates move apart, allowing magma to rise and solidify at the surface.
- Answer: Divergent Boundary

5. What type of boundary/boundaries can create earthquakes?
- Earthquakes occur along all types of plate boundaries due to the friction and stress between the plates.
- However, they are most common and intense at convergent and transform boundaries.
- Answer: Convergent and Transform Boundaries

6. Which type of boundary/boundaries create mountain ranges?
- Mountain ranges are typically formed when two continental plates collide at a convergent boundary, causing the crust to buckle and fold upward.
- Answer: Convergent Boundary

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#### Part 3: Complete the Concept Map

The concept map requires us to match terms with the appropriate plate boundary types. Let’s fill it out step by step:

- Convergent Boundaries: These involve plates coming together. Features include:
- Deep-sea trenches: Formed where one plate subducts beneath another.
- Volcanic islands: Arise from volcanic activity at subduction zones.
- Volcanic mountains: Formed by volcanic eruptions at convergent boundaries.

- Divergent Boundaries: These involve plates moving apart. Features include:
- Mid-ocean ridges: Formed by magma rising up and solidifying as new oceanic crust.
- Rift valleys: Formed on land where continental plates are pulling apart.

- Transform Boundaries: These involve plates sliding past each other. Features include:
- Major earthquakes: Occur due to the friction and sudden release of energy as plates slip past each other.

Now, let’s complete the concept map:

```
Plate boundaries
|
|--- include --- Convergent
| |--- form --- deep-sea trenches
| | volcanic islands
| | volcanic mountains
|
|--- include --- Divergent
| |--- form --- mid-ocean ridges
| rift valleys
|
|--- include --- Transform
|--- cause --- major earthquakes
```

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Final Answers

1. Divergent Boundary
2. Convergent Boundary (Subduction Zone)
3. Transform Boundary

4. Divergent Boundary
5. Convergent and Transform Boundaries
6. Convergent Boundary

7. Concept Map Completion:
- 5. mid-ocean ridges
- 6. rift valleys
- 7. major earthquakes
- 8. deep-sea trenches
- 9. volcanic islands
- 10. volcanic mountains

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Final Answer Box

\boxed{
\begin{aligned}
&1. \text{Divergent Boundary} \\
&2. \text{Convergent Boundary (Subduction Zone)} \\
&3. \text{Transform Boundary} \\
&4. \text{Divergent Boundary} \\
&5. \text{Convergent and Transform Boundaries} \\
&6. \text{Convergent Boundary} \\
&7. \text{Concept Map:} \\
&\quad 5. \text{mid-ocean ridges} \\
&\quad 6. \text{rift valleys} \\
&\quad 7. \text{major earthquakes} \\
&\quad 8. \text{deep-sea trenches} \\
&\quad 9. \text{volcanic islands} \\
&\quad 10. \text{volcanic mountains}
\end{aligned}
}