Sunflowers and Acid Rain

Talent 21 Project

By : Brianna Lawson

Date 5/1/12

Period :5

Introduction

The purpose of this experiment was to find out …if tap water or vingar water would grow 3 sunflower seeds.

The control in this experiment was tap water

The variable in this experiment was vinegar

Materials

Plastic cup

super growing pellets

Triple beam balance scale

Sunflower seeds

10% vinegar 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 … (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: _Will the seed grow faster than in the vinegar water?

State Your Hypothesis

If I plant a sunflower seed, it will grow slower, because the vinegar damages the seed. I t damages the seed because its acid rain instead of regular tap water. Regular tap water makes it better to grow because my group used different waters.

Identify Control & Variable

The control of my experiment was tap water.

The variable of my experiment was vinegar.

Test Your Hypothesis

If I add vinegar water to my sunflower seed, then it will grow faster because it would help the plant grow faster./

Collect & Record Your Data

Day Before liquid

After liquid

Difference

Day 1 64.4 91.7 27.3

Day 2 83.8 88.4 4.6

Day 3 67.9 77.0 10.1

Day 4 70.3 80.0 9.7

Day 5 69.5 76.0 6.5

Day 6 68.5 77.5 9.0

Line graph

Day 1 Day 2 Day 3 Day 4 Day 5 Day 60

10

20

30

40

50

60

70

80

90

100

Series1Series2Series3

Interpret Your Data

The results showed that the vinegar is not good water for this plant. 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 using both waters. Scientific errors that could have occurred and affected the results include wrong water.

State Your Conclusion

The results of this lab did not support the initial hypothesis This was the outcome because the plant was watered with vinegar water. Some things that were learned from this experiment were that it is hard for sunflowers to grow in vinegar water. This experiment could be extended in the future by using more water, different water, less water, different soil.