URGENT
Dau COROANĂ!

1. If you heat water, it boils.
2. If temperature fall below 0C, water freezes
3. If you boil water, it makes a steam
4. If you heat metal, it expands
5. If you put salt on ice, it melts
You may also use "when" in some cases:
When you boil water it makes steam.
When you heat metal it will expand.
Whenever you put salt on ice, it will melt.