Sunflowers and Acid Rain Talent 21 Project By Kevin Norwood Date 5/4/11 Period 7

Introduction  The purpose of this experiment was to find out whether the plant grown by the acid rain would grow more or the tap water plant would grow more.  The control in this experiment was tap water.  The variable in this experiment was vinegar water.

Materials  Plastic cup  super growing pellets  Triple beam balance scale  Sunflower seeds  Water or 10% vinegar water  Ruler  Data sheet

Methods 1. Add super growing pellets to cup. 2. Add 3 tablespoons of water to expand. 3. Plant 3 seeds per cup. 4. Weigh cup on triple beam balance. Record weight. 5. Add tap water or vinegar water to cup. Weigh again and record data. 6. Cup will be placed under grow light. 7. Observe the container daily and note any indications of growth(by observations and measurement) and compare to other containers in the experiment. While observing indicate any special care given to the plant. (Did you need to add more or less water? Did you need to rotate the plant?) 8. Record observations, measurements, and comments in the plant growth diary. Once the plant begins to grow, you will need to draw a detailed picture of the plant including the appearance of leaves and stems. 9. Each day, repeat steps 3 through 8.

Scientific MethodScientific Method  Ask a Question  State Your Hypothesis  Identify Control & Variable  Test Your Hypothesis  Collect & Record Your Data  Interpret Your Data  State Your Conclusion

Ask a QuestionAsk a Question  The purpose of this experiment was to find out whether the plant with the vinegar water would grow more.  My question: How will the plant grow.

State Your HypothesisState Your Hypothesis  If I plant a sunflower seed that is grown with vinegar water, it might grow. But the result, the plant will not grow as much as the plant grown with tap water. Also, I think that the vinegar water plant will wither as it processes its growth.

Test Your HypothesisTest Your Hypothesis  If I add vinegar water to my sunflower seed, then it took a while to grow because the vinegar water did give as much nutrients to grow as the plant grown with the tap water.

Plant GrowthPlant Growth

Interpret Your DataInterpret Your Data  The trends that I noticed were that the plant did not grow as much. This plant would weigh a lot one day and way less the other day.

State Your ConclusionState Your Conclusion  The results of this lab did support the initial hypothisis the plant grown by the water vinegar water did not grow as much as the plant grow with the tap water. Some things that were learned from this experiment was that all a plant needs to grow is some water. This experiment could be extended in the future by doing this expiramite again but with a different type of water.