Conditional zer0

1. By A.Faraji
Water boils at 100 degree.
Red and blue = Purple

2.  real or factual conditional
 The result is always
 facts, habits, daily routines, rules, general truths =
present simple
 You can also use modals in the result clause

3. Water boils at 100 degree.
If Condition Result
simple present, simple present
If
If you heat water to 100 degrees, it boils.
If Condition Result
simple present simple present
If it makes Purple If you mix red and purple.
Red and blue = Purple

4. If you cross an international date line,
the time changes.
This always happens — every time you
cross a date line.
If it rains, the grass gets wet. This is basically always true — the rain
makes the grass wet.
Wood doesn't burn if there is no air. This is a scientific fact — wood needs air in
order to burn. No air = no fire.
Ice melts if you heat it. This is a scientific fact — Heat the water
and It boils
Exercise
if / no / rain / the grass / not / grow
ice / float / you / drop / it / in water
my daughter / eat / too much chocolate / she /get / sick