Thursday, August 12, 2010

Our Experiment!

Sorry for the long wait everyone! Our experiment:

Aim: To find out if the amount of water will affect the rate of photosynthesis
Hypothesis: The photosynthesis rate increases as the amount of water provided increases

Approach: Have three setups of hydrilla plants in beakers. Sunlight is kept constant for all setups. one beaker will be filled to the brim, one half full, one 1/4 full. In the end of the test we will calculate the rate of photosynthesis.

Apparatus:
  • 3 hydrilla plants
  • 3 light lamps
  • 3 small beakers
  • 1 measuring cylinder
  • 1 photosynthesis rate recorder
Variables: Constant: Water temperature, intensity of light, type of plant
Dependent variables:Amount of water
Procedures:
  1. Place one hydrilla plant into each beaker and ensure that all plants are fully submerged in the water. (name each beaker e.g. Beaker 1, Beaker 2)
  2. Use measuring cylinder to pour needed amount of water to each beaker slowly spreading out watering period
  3. Light lamps will be placed to each beaker at equal distance
  4. Use photosynthesis rate recorder to see rate of photosynthesis
Pls comment!

By --Existence--

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