zero conditional with If / when

1. You can use conditional sentences with if or when talk about
causes and results.
To talk about facts or thing that are usually true also talk about
scientific facts
If + present simple , present simple
When + present simple , present simple
ex :
If you heat ice cream, it melts.
If / when it rains , the grass grow

2. • If you cook an egg in the microwave, it explodes.
• when you put water in the freezer, it becomes ice
.
• If you eat too much chocolate, you gain weight.
• when you want to leave, call me after 2:00. Pm.
• If it doesn’t rain for a long time, the earth becomes very
dry.
• If you touch a fire, you get burned
• When you stand on the rain , you get wet
• If he heats butter, it get melts

3. • if ahmed comes back to the office,
can you tell him I’ve gone home
• When ahmed comes back to the
office, can you tell him I’ve gone
home

4. Question
• What do you like to buy when you go
to the bakery?
• What happens when you don’t do
your homework?
•