Answer the following questions.

1. What are the three states of water?
2. How do water molecules behave in each of these states?
3. Name two solid substances that dissolve easily in water.
4. What is the name of the gas that can also dissolve easily in water?
5. How do fish collect oxygen from water?
6. Why do fish die when they are on dry land, even though the air is full of oxygen?
7. What makes water a unique substance?
8. How can water's surface tension be reduced?
9. Where in the world can you find the largest salt solutions?