Zero conditional and First conditional (:

Zero conditional:

(if+simple present+,+simple present)

1)If you freeze water , it turns into ice.

2)If I am thristy, I drink water.

3) If she falls off a building, she dies

4) If you are hungry , you have to eat something 

5) If my friends get lost , I help they to find the way 

First conditional

(If+simple present+.+will)

1)If you give me money, I will buy something.

2)If he falls off a building, he will die.

3)If I am hungry, I will eat bread.

4)If you eat bad food, you will be sick.

5)If I make a sandwich I will be fine.