1. Most art forms require a contribution from the observer.

2. Nitrogen forms four-fifths of the atmosphere.

3. Cook the fruit gently until it forms a pulp.

4. The mass media forms a web of communications.

5. Music is not like most other art forms.

6. Research forms the predominant part of my job.

7. Ice, snow and steam are different forms of water.

8. I abhor all forms of racism.

9. She simply observes the outward forms of religion.

10. The mayor decried gambling in all its forms.

11. Avionics forms an important part of the defence industry.

12. Intolerance can take subtler forms too.

13. Many forms of aquatic life inhabit ponds.

14. Its outline roughly forms an equilateral triangle.

15. The river forms the boundary.

16. Ozone forms a protective layer between 12 and 30 miles above the Earth's surface.

17. These bacteria have mutated into forms that are resistant to certain drugs.

18. The bass clarinet forms a solid bass for the woodwind group.

19. Modernism seeks to find new forms of expression and rejects traditional or accepted ideas.

19. Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.

20. The high concentration of sugars forms a syrup when the sap evaporates.

21. The basic forms of jacket, vest, and breeches developed slowly.

22. Raising animals was only secondary to other forms of farming.

23. The Nile divides near its mouth and forms a delta.

24. A hedge forms the division between her land and mine.

25. The Mississippi River forms a natural boundary between Iowa and Illinois.

26. Ice and snow are different forms of the same substance, water.

27. Many forms of cancer can be cured if detected early.

28. Life is a test and this world a place of trial. Always the problems - or it may be the same problem will be presented to every generation in different forms.

29. Water and ice are the same substance in different forms.

30. Last Thursday's show produced moments of inspired concordance between the dance forms.