Across
- 2. A form of writing with wedge shaped markings
- 5. When the crust sinks back down into the mantle at a colliding plate boundary
- 6. A picture that shows meaning to a word or an idea
- 9. When molten adds new crust in earth's water
- 10. Some who is skilled in writing and record keeping
Down
- 1. A sharpened reed used to put pressure and put markings in the tables
- 3. Mountains that are underneath land and inside of the ocean and takes part in a long system of underwater mountains
- 4. A electronic that can reflects sound waves off of objects in the water
- 7. A mix of copper and tin that is used to make stronger things
- 8. A deep undersea valley that slowly sinks towards the mantle