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Sunflowers and Acid Rain

Sunflowers and Acid Rain. Talent 21 Project By: Gavin Henderson Date _________ Period ________. Introduction. The purpose of this experiment was to find out the effect of acid rain. The control in this experiment was the tap water. The variable in this experiment was vinegar water. .

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Sunflowers and Acid Rain

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  1. Sunflowers and Acid Rain Talent 21 Project By: Gavin Henderson Date _________ Period ________

  2. Introduction The purpose of this experiment was to find out the effect of acid rain. The control in this experiment was the 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 or 10% vinegar water • Ruler • Data sheet

  4. Methods • Add super growing pellets to cup. • Add 3 tablespoons of water to expand. • Plant 3 seeds per cup. • Weigh cup on triple beam balance. Record weight. • Add tap water or vinegar water to cup. Weigh again and record data. • Cup will be placed under grow light. • 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?) • 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. • Each day , repeat steps 3 through 8.

  5. Scientific 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 Question The purpose of this experiment was to find out the effects of the acid rain on the sun flower. My question: Will acid rain effect plant growth.

  7. State Your Hypothesis If I plant a sunflower seed it will grow taller then the acid rain sunflower.

  8. Identify Control & Variable The control is tap water.

  9. Test Your Hypothesis If I add tap water to my sunflower seed, then it did not growbecause we might of put to much water.

  10. Collect & Record Your Data Date Dry Wt. Wet Wt. Difference Day 1 10.4 g 98.8 g 85.1 g Day 2 87.4 g 87.4 g no diff Day 3 70.1 g 70.8 g .4 g Day 4 60.8 g 70.6 g .7 g Day 5 67.3 g 73.6 g 6.0 g Day 6 60.8 g 70.8 g .10 g Day 7 72.9 g 86.7 g 2.6 g

  11. Interpret Your Data The results showed that the plant did not 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 not enough water.

  12. State Your Conclusion The results of this lab did not support the initial hypothesis I think its because we did not give it much water. Some things that were learned from this experiment were I found out that acid rain grows faster This experiment could be extended in the future by

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