Across
- 2. A mixture of two liquids that normally don’t mix, like oil and water.
- 4. A substance used to prevent food from spoiling.
- 5. A substance that speeds up a chemical reaction without being consumed.
- 7. A substance used for cleaning, especially for clothes and dishes.
- 8. The gradual destruction of metals by chemical reactions with their environment.
- 9. A liquid that dissolves another substance, such as water or alcohol.
Down
- 1. A process where sugars are converted to alcohol or acids by microorganisms.
- 3. A chemical reaction where a substance loses electrons, often involving oxygen.
- 4. level A measure of how acidic or basic a substance is.
- 6. A substance that sticks objects together (e.g., glue.