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Sunflowers and Acid Rain

Sunflowers and Acid Rain. Talent 21 Project By: Brittney Pearl Date: 5/3/12 Period : 4 th. Introduction. The purpose of this experiment was to find out how acid rain affects plants grow. The control in this experiment was 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: Brittney Pearl Date: 5/3/12 Period : 4th

  2. Introduction • The purpose of this experiment was to find out how acid rain affects plants grow. 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 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 how acid rain affects plant grow. • My question: Why does the sunflower take so long to grow?

  7. State Your Hypothesis • If I plant a sunflower seed and water it every day, (about 7 to 8 squirts) it will grow really big after a while.

  8. Identify Control & Variable • The control was tap water. • And the variable was vinegar water.

  9. Test Your Hypothesis • If I add water to my sunflower seed, then it grow because that’s what it needs to grow.

  10. Collect & Record Your Data

  11. Interpret Your Data

  12. State Your Conclusion • My plant grew, and it will still grow to a sunflower later on if I keep watering it, giving it sun light, and leaving it be.

  13. Bye, thanks for watching!!!!

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