Final Answer:
1. (Labels from top to bottom, left to right based on diagram flow):
- Top arrow pointing to magma: Melting
- Left side: Igneous Rock → Weathering → Sediment → Compaction & Cementation → Sedimentary Rock → Heat & Pressure → Metamorphic Rock → Melting → Magma
- Right side: Metamorphic Rock → Weathering → Sediment → Compaction & Cementation → Sedimentary Rock → Heat & Pressure → Metamorphic Rock (loop)
- Bottom arrow from metamorphic rock to magma: Melting
2. The processes powered by Earth’s internal heat are: Melting, Metamorphism, and the formation of Igneous Rock from magma. This is because these happen deep inside Earth where it’s hot from the core and mantle, not from the Sun or weather.
3. The energy for weathering and erosion comes from the Sun. The Sun heats the air and water, which causes wind and rain that break down rocks. Also, the Sun helps plants grow, and their roots can crack rocks — so even plant action comes from solar energy.
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Parent Tip: Review the logic above to help your child master the concept of rock cycle vocabulary worksheet.
