Across
- 4. Region known for early olive oil soap production
- 7. Substance with a pH above 7
- 8. Idea that germs cause disease; germ _____
- 10. Oily outer layer surrounding many germs
- 12. Scale measuring how acidic or basic a substance is
- 13. Water containing minerals that reduce soap effectiveness
- 15. One of the earliest civilizations to record soap-making
Down
- 1. Chemical reaction that forms soap
- 2. Sticky film formed when soap reacts with minerals
- 3. Process where substances change into new substances
- 5. Cleaner designed to work well in hard water
- 6. Tiny organisms that can cause illness
- 9. Bubbles formed when soap and water mix
- 11. Able to damage skin or materials
- 14. Substance with a pH below 7