1. Sunflowers and Acid Rain Talent 21 Project By Justin Hayes Date 5-7-12

2. Introduction  The purpose of this experiment was to find out if the plant would grow with water and sunlight.  The control in this experiment was Tap Water  The variable in this experiment was Vinegar Water

3. Materials  Materials  Plastic cup  super growing pellets  Triple beam balance scale  Sunflower seeds  Water  Ruler  Data sheet

4. 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 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.

5. 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

6. Ask a QuestionAsk a Question  The purpose of this experiment was to find out if the sunflower seeds will grow with water.  My question: will sunflower seeds grow in water?

7. State Your HypothesisState Your Hypothesis  If I plant a sunflower seed and water is added to it, will grow.

8. Identify Control & VariableIdentify Control & Variable  The variable is the vinegar water.  The control is the tap water.

9. Test Your HypothesisTest Your Hypothesis  If I add water to my sunflower seed, then it will grow because water and sunlight are needed for plant growth.

10. Collect & Record Your DataCollect & Record Your Data DayDry Wt.Wet Wt. Differenc eHeight 14584390 265.1580.0914.940 37578.82.20 460.770.39.60 571.181.410.30 662.6700

11. Interpret Your DataInterpret Your Data  The results showed no growth of the sunflower seeds. The water did not help the seeds grow.  As part of this experiment there may have been variables or scientific errors that could have affected the growth of the plants and the outcome of this experiment. The variables affecting the results may have been we used too much water or not enough water. Also there may have been a lack of sunlight.

12. State Your ConclusionState Your Conclusion  The results of this lab did not support the initial hypothesis because our seed did not grow. Possibly because of too much water. Some things that were learned from this experiment were that too much water can destroy the plants. This experiment could be extended in the future by using direct sunlight, more time, less water, or a more rich soil.