1 If you heat ice, it melts.
2 If Tim has a computer, he uses the internet.
3 If you don't put on sun cream, you will get a sunburn.
4 If I go to Spain, I will watch a flamenco performance.
5 If you freeze water, it becomes ice.
6 If he were younger, he would exercise more.
7 If I were you, I would see a doctor immediately.