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Demonstrating the production of oxygen during photosynthesis
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- Words:
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- Submitted:
- Sun Sep 27 2009
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... Wednesday, November 29th, 2006 Demonstrating the production of oxygen during photosynthesis Aim: An experiment to show the investigation into the relationship between the rate of photosynthesis and the intensity of light. Hypothesis: The rate of photosynthesis will increase along with the intensity of light. Variables: Fixed: volume of water, amount of pondweed, size of beaker/test tube/funnel, temperature Manipulated: light intensity Responding: amount of oxygen released in a certain amount of time Apparatus: * Canadian pondweed * Glass beaker * 250 ml water * Thermometer * Test tube * Funnel * Support (to keep the funnel off the bottom of the beaker. This allows the water to circulate) * Lamp (light source) Method: 1. Collect apparatus. 2. Fill beaker with 250 ml water. 3. Take temperature of water and record. 4. Place Canadian pondweed in funnel (with leaves facing base of funnel) and attach support to the base of the funnel. 5. Place funnel inside beaker. 6. Fill test tube to the brim with water. 7. Place your finger on the top of
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