Photosynthesis

15th May 2009

Equipment used. We used oxygen weed, a funnel, test tube. water , a container, and stones

The point of this experiment is to see how much oxygen -oxygen weed can produce. we will be able to measure it by seeing how many bubbles the test tube collects.

Observation after week one.
It didn't work out as we thought it would, because the cats kept drinking the water from it. I think that if the water is lowered the weed has less water to turn into oxygen. There are bubbles in the top of the test tube. The oxygen weed is producing oxygen, but less then I thought.

|Observation after week two.

The one in the darkness has produced so much oxygen that some of the oxygen weed has gone to the top of the test tube. And the one in the light has little water and little oxygen in the test tube. The test tube is fill of lots of air, water and oxygen, and the one in the darkness has more than the one in the light.