Take water in the glass and heat it using the heating rod til its temperature reaches to 50-60 degree. Note the temperature using the temperature sensor. Now take the water into the syringe and close the tip using your thumb. Pull the plunger of the syringe outwards it will decrease the pressure inside the syringe and water will start boiling at temperature less than 100 degree. It happens because temperature and pressure are dependent properties as you decrease the pressure the boiling point of water also decreases.