Across
- 3. _______ crust makes up the ocean floors of the Earth.
- 5. _________ volcanoes are steep at the summit and gentler near the base.
- 8. A _________ boundary is formed when two plates slide past each other.
- 10. ___________ ______ are formed when two oceanic crusts converge.
- 14. When two continental crusts diverge, ____ _______ are formed.
- 15. The inner most layer of the Earth is the ____.
Down
- 1. Liquid resistance to flow is called _________.
- 2. ____ volcanoes have steep slopes and are formed by acid lava flowing before solidifying.
- 4. _______ ________ are elongated depressions in the sea floor.
- 6. Volcanoes are formed due to __________.
- 7. ___________ crust makes up the continents.
- 9. The centre layer of the Earth is the ______.
- 11. Plates collide into each other at __________ boundaries.
- 12. Plates move apart from each other at _________ boundaries.
- 13. ________ plates are pieces of the Earth's crust that make up the surface of the Earth.