Plate Tectonics - Layers of Learning - Free Printable

The image provided is a table summarizing the effects of different types of plate boundaries in geology. Let's break it down and explain each section:

Plate Boundaries

There are three main types of plate boundaries:
1. Divergent Plate Boundary
2. Convergent Plate Boundary
3. Transform Plate Boundary

Explanation of Each Type:

#### 1. Divergent Plate Boundary
- Definition: Occurs when two tectonic plates move away from each other.
- When Two Plates Separate: This movement creates a gap between the plates, which is filled by magma rising from the mantle. As the magma cools and solidifies, new crust is formed.
- Effects:
- Mid-ocean mountain ranges: These are underwater mountain chains that form along divergent boundaries, such as the Mid-Atlantic Ridge.
- Volcanoes under the sea (island formation): As magma rises and erupts, it can form volcanic islands, such as Iceland.
- Earthquakes: The separation of plates can cause seismic activity.

#### 2. Convergent Plate Boundary
- Definition: Occurs when two tectonic plates move toward each other and collide.
- When Two Plates Collide: The collision results in significant geological activity due to the immense pressure and friction between the plates.
- Effects:
- Volcanoes: When an oceanic plate subducts beneath a continental plate, melting occurs, leading to volcanic activity on the surface.
- Mountain ranges: The collision of two continental plates can push up landmasses, forming mountain ranges, such as the Himalayas.
- Earthquakes deep under the surface: The subduction process and the friction between plates can cause deep earthquakes.

#### 3. Transform Plate Boundary
- Definition: Occurs when two tectonic plates slide past each other horizontally.
- When Two Plates Slide: The movement is primarily horizontal, with little vertical displacement.
- Effects:
- Earthquakes: The sliding motion often causes frequent and sometimes severe earthquakes, such as those along the San Andreas Fault in California.

Completed Table:

| Plate Boundaries | Divergent | Convergent | Transform |
|-----------------------|---------------|----------------|---------------|
| When Two Plates | | | |
| Separate | | | |
| | Mid-ocean mountain ranges, volcanoes under the sea (island formation), earthquakes | Volcanoes, mountain ranges, earthquakes deep under the surface | Earthquakes |

Final Answer:

The completed table is as follows:

| Plate Boundaries | Divergent | Convergent | Transform |
|-----------------------|---------------|----------------|---------------|
| When Two Plates | | | |
| Separate | | | |
| | Mid-ocean mountain ranges, volcanoes under the sea (island formation), earthquakes | Volcanoes, mountain ranges, earthquakes deep under the surface | Earthquakes |

Boxed Final Answer:
\boxed{
\begin{array}{|c|c|c|c|}
\hline
\textbf{Plate Boundaries} & \textbf{Divergent} & \textbf{Convergent} & \textbf{Transform} \\
\hline
\text{When Two Plates} & & & \\
\text{Separate} & & & \\
\hline
& \text{Mid-ocean mountain ranges, volcanoes under the sea (island formation), earthquakes} & \text{Volcanoes, mountain ranges, earthquakes deep under the surface} & \text{Earthquakes} \\
\hline
\end{array}
}