Across
- 3. This type of crust is between 5km to 8km thick and is composed of basalt.
- 7. Younger rocks are found near the mid-oceanic ____________.
- 8. Most landforms are found within close proximity to the ______________ Ocean.
- 9. This layer within earth is about 2900km thick.
- 10. A type of plate boundary where plates move apart from each other.
Down
- 1. The inner core is solid because of the intense heat and _________________ it experiences.
- 2. This process is thought to be the main mechanism for tectonic plate movement.
- 4. Over time and multiple eruptions, undersea volcanoes grow and emerge above the ocean surface to form volcanic ______________ (e.g. Iceland).
- 5. The Nubian plate and Somalian plate move away from each other to form this landform.
- 6. The core is composed partially of this material.