To determine whether the Temperature would affect the rate of photosynthesis in a plant.

 

       Apparatus: 

      · Funnel.

      · Measuring cylinder.

      · Stopwatch.

      · Beaker.

      · Hot Water

      . Ice Cubes

      · Pondweed.

      · Water.

      . Thermometer

Fair Test: 

· The same pondweed must be used every time we change the light distance.

· Take results after one minute for each individual experiment.

Method: 

· Collect apparatus.

· Set up apparatus as in diagram.

· Fill measuring cylinder and beaker with water.

· Each Minute, we would have different temperature.

          · Start stopwatch.

· Count the bubbles for every one-minute, then write my results down on a paper.

  Safety: 

· Follow lab safety rules (e.g. no running bags at back etc).

· Keep the hot water away from your hands.

. Wear Goggles, and lab coat.

Results:

Graph:

Diagram:

Conclusion:

Looking at my results a can see a significant increase in the rate of

 Photosynthesis as the temperature decreases. All of the results I was given show this pattern. In the experiment when the temperature was 60, it was when most of the bubbles came out, about 37bubble per-minute. However, when the temperature dropped, the number also dropped and decreased to about 5bubbles per minute. I believe this is because when the temperature is higher, the photosynthesis is faster, and better.