Across
- 1. to push something so that it moves
- 2. run into or hit something while moving
- 3. a group of connected mountains that were formed during the same time period
- 5. raised to a higher point
- 7. very large in size or amount
- 9. the powder that remains after something is burnt
- 11. to become firm over a period of time
- 12. to walk long distance through a natural environment for fun or exercise
- 13. a thin line where something has broken
Down
- 1. to come to understand how something happens or works
- 2. the outer layer of the earth
- 4. suddenly and violently
- 6. to explode and shoot hot material into the air
- 8. melted by heat
- 10. hot, liquid matter beneath the earth's surface that cools to form rock