Across
- 2. are substances that have a pH value higher than 7
- 4. getting bigger
- 6. the process of obtaining food (nutrients) needed to survive
Down
- 1. is a substance that neutralizes an acid
- 2. are substances that have a pH value lower than 7
- 3. the ability to detect and respond to changes in one's surroundings
- 5. traveling from one place to another or changing positions