Sunflowers and Acid Rain Talent 21 Project By Ruben Perez Date _May 4 2012_ Period __3___

Introduction The purpose of this experiment was to find out if the acid rain would affect the sunflower seed. 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 Ruler Data sheet

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.

Scientific 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 Question The purpose of this experiment was to find out … (Include background information about requirements for plant growth and plant needs- your textbook would be a good place to begin gathering background information. Include information about the plant or the variable you used to help make your plant go and its importance in this experiment. My question: _Would the plant grow?

State Your Hypothesis If I plant a sunflower seed it would not grow much because it is not out side.

Identify Control & Variable The control is the tap water and the variable is the vinegar water.

Test Your Hypothesis If I add __Tap_________water to my sunflower seed, then it ___did not grow_______________ because___it did not have enough water.

Collect & Record Your Data

Interpret Your Data The seed was to dry and it could not grow because the soil was to dense. 5un flower seeds need sun to grow faster and bigger.

State Your Conclusion The results of this lab (did/did not) support the initial hypothesis (explain why you think this was the outcome.) Some things that were learned from this experiment were (identify what you learned without using first person) This experiment could be extended in the future by (identify an investigation that would be a natural next step based on your results.) Add Graphic