The Rock Cycle diagram illustrating the stages and processes of rock formation and transformation.

I need to help complete this rock cycle diagram by labeling the stages. Let me work through the rock cycle step by step.

The rock cycle shows how rocks change from one type to another through different processes. Looking at the diagram:

1. Starting with the volcano (volcanic eruption) - this produces lava/magma that cools
2. When magma/lava cools and solidifies, it forms igneous rock
3. Igneous rock can be broken down by weathering into smaller pieces called sediment
4. Sediment gets compacted and cemented together to form sedimentary rock
5. Sedimentary rock (or igneous rock) can be subjected to heat and pressure to become metamorphic rock
6. Metamorphic rock can melt back into magma, which can erupt again

Looking at the positions in the diagram:
- Top right: volcanic eruption → leads to cooling/crystallization
- Top left box (after volcano): This should be where magma/lava cools to form rock
- Bottom right box: This appears to be sedimentary rock formation
- Bottom left box: This appears to be metamorphic rock
- The arrows show the cyclical nature

Let me trace through more carefully:
- Volcano erupts (shown)
- Magma/lava cools and crystallizes → forms igneous rock
- Igneous rock weathers/erodes → forms sediment
- Sediment compacts/cements → forms sedimentary rock
- Sedimentary rock undergoes heat/pressure → forms metamorphic rock
- Metamorphic rock melts → becomes magma again → can erupt

Based on the arrow directions and typical rock cycle diagrams:
- After volcanic eruption (top right), the material cools to form igneous rock (top left position)
- Igneous rock breaks down into sediment (bottom right position)
- Sediment becomes sedimentary rock
- Sedimentary rock becomes metamorphic rock (bottom left position)

Wait, let me reconsider the positions based on the green arrows:
- From volcano → goes to top left box
- From top left box → goes down to bottom left box
- From bottom left box → goes right to bottom right box
- From bottom right box → goes up back to volcano

So the cycle is:
1. Volcanic eruption produces magma/lava
2. Cools to form igneous rock (top left)
3. Weathers/breaks down into sediment (bottom left)
4. Compacts into sedimentary rock (bottom right)
5. Can melt back to magma or become metamorphic

Actually, I need to look at this more carefully. The standard rock cycle includes:
- Igneous rock
- Sediment
- Sedimentary rock
- Metamorphic rock
- Magma

Let me reconsider based on typical educational diagrams:
- Top left (from volcano): Igneous rock (formed when lava cools)
- Bottom left: Sediment (broken down rock particles)
- Bottom right: Sedimentary rock (compacted sediment)
- The metamorphic rock would be formed from either igneous or sedimentary rock under heat and pressure

But wait, there's also a label at the bottom showing "Metamorphic rock" with an arrow pointing somewhere. Let me think about this differently.

Looking at the flow:
- Volcano → [box] → [box] → [box] → back to volcano

The three boxes likely represent:
1. Igneous rock (cooled lava)
2. Sediment (weathered rock)
3. Sedimentary rock (compacted sediment)

And metamorphic rock would be an alternative path.

Final Answer:
Top left box: Igneous rock
Bottom left box: Sediment
Bottom right box: Sedimentary rock