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What factors might affect the rate of production of oxygen by plant?

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Introduction

What factors might affect the rate of production of oxygen by plant? Variables Light Heat Water Carbon Dioxide Time Spent Counting Size of Boiling Tube Distance of Lamp Amount of Water Choose one variable that you are going to investigate. ...read more.

Middle

Equipment Pond Weed Lamp Stop Clock Meter Ruler Plan A piece of pondweed will be cut and placed into a beaker containing water and sodium hydrogen carbonate. A lamp will be shined on to the pondweed and the amount of foam released from the plant will be counted. ...read more.

Conclusion

Results Distance of Lamp from Apparatus Number of Gas Bubbles/ Minute Group A Group B Group C Group D Average Lamp Off 0 0 0 0 0 100 cm 0 2 11 0 3 50 cm 19 39 26 10 24 30 cm 41 60 53 42 42 10 cm 59 Over 100 79 60 Over 75 ?? ?? ?? ?? Sadeck Amin 01/05/07 ...read more.

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