AIM: oxygen is produced during photosynthesis in presence of light.
MATERIALS REQUIRED:test tube , hydrilla twigs , beaker , water , funnel etc.
PROCEDURE: First take a beaker and fill with water in that and keep it a side . than take hydrilla twigs and put it in the funnel and keep the funnel in the beaker . then take a test tube and pour water in that and put the test tube inversely on the funnel.then put this experiment in the sun light .
OBSERVATION:After some time we will observe some bubbles are coming through the test tube from the hydrilla twigs .
CONCLUSION: by this experiment we can know that oxygen is produced during photosynthesis in presence of light.
NOTE: this experiment will be work in the sun light.