Sunflowers and Acid Rain Talent 21 Project By Apryl Rodriguez Date May 2,2012 Period 5

Introduction  The purpose of this experiment was to find out if acid rain and vinegar water will effect the growth of a sun flower seed.  The control in this experiment was tap water  The variable in this experiment was vinegar water

Materials  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 if acid rain and vinegar water will effect the growth of a sun flower seed.  My question: Will the growth of a sun flower seed be effected by vinegar water?

State Your HypothesisState Your Hypothesis  If I plant a sunflower seed I think that the growth of the sunflower will not be effected by the vinegar and it will grow faster.

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

Test Your HypothesisTest Your Hypothesis  If I add vinegar water to my sunflower seed, it did not grow probably because the vinegar water did effect the growth of my plant.

Collect & Record Your DataCollect & Record Your Data

Interpret Your DataInterpret Your Data  I didn’t notice a trend of any kind  Think that the growth of the plant was effected by the vinegar water.  I think this because other people’s plants grew faster and they used tap water.

State Your ConclusionState Your Conclusion  The results of this lab did not support my hypothesis because f the vinegar.  In the future this experiment can be extended by putting them in a warmer room and using tap water.