Granny and Grandpapa's crossword

6. Tempo The speed of a piece of music.
8. The process by which organisms maintain stable internal conditions despite external changes.
9. A process that removes contaminants from water by passing it through a porous material.
12. The famous composer who became deaf but continued writing music.
13. A piece of music written for a solo instrument and orchestra.
14. The process of removing or inactivating harmful microorganisms to make water safe for consumption.

1. A biological process where cells divide to produce two genetically identical cells.
2. I have 88 keys and can play both soft and powerful melodies.
3. Mozart’s first name.
4. The chemical process of treating water by adding chlorine compounds to destroy pathogenic microorganisms.
5. A microorganism capable of causing disease in a living organism.
7. A water purification method using electromagnetic radiation to damage the DNA of bacteria and viruses.
10. The symbol that tells musicians how high or low notes are.
11. A written collection of musical notes created by a composer.
14. The molecule containing the genetic instructions used in the development and functioning of living organisms.
15. A group of musicians playing together.