Put the lid on and start at high flame, when it boils set to medium flame and boil for about seven minutes.

Done! Now I just have to set it to simmer so it doesn't boil before everybody comes.

The kettle must be boiling.

Put some salt into the boiling water.

She left the kitchen with the kettle boiling.

Our teacher said that water boils at 100ºC.

Water turns into steam when it is boiled.

Water boils at 100 degrees Celsius.

Water boils at a temperature of 100 degrees centigrade.

Water will boil if heated enough.

Water boils at 100 degrees Celsius.

Water boils at 100 degrees.

We know that water boils at 100 degrees.

The country seethed over the issue of national defense.

The water is boiling away.

Milk boils at a higher temperature than water.

The water will come to a boil in 5 minutes or so.

The coffeepot is boiling.

The water hardly began to boil when she added the ingredients.

The water has boiled away.