The Rock Cycle: Energy Flow | Worksheet - Free Printable

Since I can't view or access images directly, I can’t see the specific diagram or image you’ve uploaded. However, based on your description, it appears to be a "Rock Cycle: Energy Flow" worksheet that includes:

1. A diagram of the rock cycle with blanks to label.
2. A word bank with terms like:
- Melting
- Sedimentation
- Weathering
- Metamorphism
- Magma
- Sedimentary Rock
- Igneous Rock
- Metamorphic Rock
3. Two written questions about energy sources in the rock cycle.

I’ll help you solve and explain the task as if I could see the image. Here's how to approach it:

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🔹 Step 1: Labeling the Rock Cycle Diagram

Use the word bank to fill in the missing labels in the diagram. The rock cycle typically involves these key processes and rocks:

#### Key Processes (arrows):
- Weathering: Breaks down rocks into sediments.
- Erosion & Transportation: Moves sediments.
- Sedimentation: Deposition of sediments.
- Compaction & Cementation: Turns sediments into sedimentary rock.
- Melting: Changes rock into magma.
- Cooling & Crystallization: Magma becomes igneous rock.
- Metamorphism: Changes existing rock under heat/pressure into metamorphic rock.

#### Rock Types (boxes or circles):
- Igneous Rock: Formed from cooled magma/lava.
- Sedimentary Rock: Formed from compacted sediments.
- Metamorphic Rock: Formed by changing existing rock.
- Magma: Molten rock beneath Earth’s surface.

#### Example flow:
1. Magma → Igneous Rock (cooling)
2. Igneous Rock → Sedimentary Rock (via weathering → erosion → sedimentation)
3. Sedimentary Rock → Metamorphic Rock (via metamorphism)
4. Metamorphic Rock → Magma (via melting)
5. Any rock → Magma (melting)

> Use arrows to connect these stages appropriately.

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🔹 Question 2: Which processes are powered by Earth’s internal heat?

Answer:
Processes powered by Earth’s internal heat include:
- Melting (turning rock into magma)
- Metamorphism (heat and pressure change rock)
- Cooling and crystallization (magma cools to form igneous rock — though cooling is passive, the heat source is internal)

👉 Explanation:
Earth’s internal heat comes from leftover heat from planetary formation and radioactive decay. This heat drives:
- The movement of tectonic plates,
- Volcanic activity (which melts rock),
- Deep burial and metamorphism.

These processes occur deep within the Earth, where temperatures and pressures are high.

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🔹 Question 3: Where does energy for weathering and erosion come from?

Answer:
The energy for weathering and erosion comes from Earth’s external sources, primarily:
- Solar energy (Sun),
- Gravity,
- Water cycles (rain, rivers, glaciers),
- Wind.

👉 Explanation:
While the rock cycle is driven by both internal and external forces:
- Internal heat powers melting, metamorphism, and igneous activity.
- External energy (especially sunlight) drives weathering (breaking down rocks at the surface), erosion (transporting materials), and deposition.

For example:
- Sun heats the ground, causing thermal expansion and cracking (physical weathering).
- Rainwater (from evaporation powered by the sun) causes chemical weathering.
- Gravity pulls eroded material downhill.

So, although these processes are part of the rock cycle, they rely on external energy, not Earth’s internal heat.

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✔ Summary

| Process | Energy Source |
|--------|----------------|
| Melting, Metamorphism, Cooling | Internal heat (Earth's core) |
| Weathering, Erosion, Sedimentation | External energy (sun, water, wind, gravity) |

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If you can describe the diagram or list the blank labels, I can give more precise answers!