Across
- 2. A material in this state of matter cannot be squashed easily.
- 3. At the ... point a solid turns into a liquid.
- 5. Cooling lava leaves ... rocks.
- 12. A pH of 7 indicates a ... solution.
- 13. Name that is given to the process when an acid and alkali cancel each other out.
- 15. A material in this state of matter spreads to fill the container.
- 16. This type of rain can destroy even the most beautiful of statues.
- 17. Heat and pressure over a long period of time form this type of rock.
- 18. The pH of soap is ... .
Down
- 1. At the ... point a liquid turns into a gas.
- 4. Process by which salt can be separated from a salt solution.
- 5. The universal ... gives the pH value of a solution.
- 6. Process by which a gas turns into a liquid.
- 7. Happens to most materials when they heat up before changing their state of matter.
- 8. Most materials that are being cooled will ... before changing their state of matter
- 9. Process by which sand and water can be separated.
- 10. Layers of mud and sand make up these rocks.
- 11. A solid that does not dissolve in water.
- 14. An acidic liquid that you can find in most homes. Can be used in salads.