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Across 3. The sun heats the ocean waters to cause this. 4. A fried egg cannot be changed back because it has been ---. 5. Liquid chocolate when made very cold goes through this process. 7. Flour, eggs, sugar and butter are ------ to give us a cake. 10. This happens when salt is stirred into water. 11. Putting a lighted match to straw gives this irreversible change. 12. The process of stirring sand and flour together is called this. 13. All living things grow and this process is irreversible.

Down 1. Steam when cooled undergoes this reversible process. 2. When water is heated and bubbles begin to form we say it is ---. 6. Milk is turned to cottage cheese with this process. 8. This happens to iron if we leave it out in the open. 9. Ice when heated gives this reversible change.