Write sentences using the zero conditional.
1. not have breakfast / feel hungry
2. mix red and blue / get purple
3. read for a long time / get a headache
4. multiply 20 by 5 / get 100
5. put ice in a drink / make it cold
6. add 64 and 36 / get 100

1. If you don't have breakfast, you feel hungry.

2. If you mix red and blue, you get purple.

3. If you read for a long time, you get a headache.

4. If you multiply 20 by 5, you get 100.

5. If you put ice in a drink, you make it cold.

6. If you add 64 and 36, you get 100.

Rule: The zero conditional is used for facts, general truths, and things that always happen.

Structure: If + Present Simple, Present Simple.