Zero conditional

If you play with your pet, ....

• wash your hands afterwards.
• get a vaccine afterwards.
• brush their fur afterwards.

If you go to London, ....

• visit the Eiffel Tower.
• visit the Big Ben.
• visit the White House.

If you see a snake, ...

• pick it up.
• don't touch it.
• eat it.

If you leave ice in the sun, ....

• it boils.
• it turns red.
• it melts.

If you don't give your pets proper food, ....

• they make strange noises.
• they run away.
• they get ill.

If you put water on the fire, ....

• it boils.
• it melts.
• it solidifies.