3. To soak up 4. Opposite of acid 6. Our surroundings 9. Gas and oil 10. Filtering with water 11. Rain fall 13. Government agency 14. Capable of being seen
Down
1. Large wooded areas 2. Neither acid or base 3. Opposite of base 5. They pollute 7. Discharges 8. Air around us 10. Paper to test pH 12. Acidity or alkalinity
