Sunflowers and Acid Rain

Talent 21 ProjectBy Jason EarleDate 5/2/12Period 5

Introduction

•The purpose of this experiment was to find out whether the control or experimental teams plants would grow faster.

•The control in this experiment was the tap water

and variable in this experiment was vinegar water.

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

Methods1.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 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 if sunflower seeds would grow faster with tap water or vinegar.

•My question is will the seeds with vinegar grow faster then the seeds with water?

State Your Hypothesis

•If I plant a sunflower seed I would keep it in the sun light, water and good soil. I would not use vinegar because I think your plant would die if you use vinegar.

Identify Control & Variable

•What my team did was use tap water and we changed how much water we used to a little bit more water then we used last time with are plant, and it led to less growth.

Test Your Hypothesis

•My hypothesis was if we used tap water it would make the seed grow faster then the vinegar water.

Collect & Record Your DataDate Dry Wt. Wet Wt. Difference Height Notesday 1 59.4g 99.1g 39.7g noneday 2 91.4g no water 91.4g noneday 3 72.3g 82.1g 9.8g noneday4 77.8g 80.3g 2.5g noneday 5 65.6.5g 70.4.5g 14.8.0g none

Interpret Your Data

• The results showed that my plant didn’t grow as fast due to no sun light and too much water.

•As part of this experiment there may have been variables or scientific errors like no sun light and people putting their fingers in the plant.

State Your Conclusion

•The results of this lab did support the initial hypothesis. Some things that were learned from this experiment were some times plants don’t grow. This experiment could be extended in the future by using more water and sun.