Zero Conditional
for certainty
If you heat ice, it melts.
We use the so-called zero conditional when the result of the condition is always true, like a scientific fact.
Take some ice. Put it in a saucepan. Heat the saucepan. What happens?
The ice melts (it becomes water). You would be surprised if it did not.
if
condition
result
Present Simple
Present Simple
If
you heat