Zero conditional
1. What happens if you heat water to 100 degrees
Celsius?
2. If you mix red and blue, what color do you get?
3. If you leave ice in the sun, what happens?
4. What occurs if you don’t water plants?
Answers to the zero conditional questions:
1. If you heat water to 100 degrees Celsius, it boils.
2. If you mix red and blue, you get purple.
3. If you leave ice in the sun, it melts.
4. If you don’t water plants, they die.
The form of the zero conditional is:
If + subject + present simple, subject + present simple.
Key points:
1. Condition (if clause): Present Simple: if + subject
+present simple
2. Result (main clause): Present Simple: , S+ present
simple
Examples:
If you heat water, it boils.
If it rains, the ground gets wet.
Notes:
The clauses can switch places:
The ground gets wet if it rains.
Use the zero conditional to talk about general
truths, scientific facts, or habits.