Sunflowers and Acid Rain

Sunflowers and Acid Rain

Talent 21 ProjectBy Jaylen Busby Date 5/9/12Period 3

Introduction

The purpose of this experiment was to find out will acid rain affect the growth of a sun flower.

The control in this experiment was Tap water

The variable in this experiment was vinegar water

Materials

Materials Plastic cup super growing pellets Triple beam balance scale Sunflower seeds Water or 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 if acid rain will affect the growth of a sun flower

My question if acid rain will affect the growth of a sun flower

State Your Hypothesis

If I plant a sunflower seed my hypothesis is if my plant will grow of not.

Identify Control & Variable

The control is Tap water and Variable is vinegar water.

Test Your Hypothesis

If I add Tap water to my sunflower seed, then it _is will grow into a big plant instead of a little one because then a little one is going to be ugly but a big one is better.

Collect & Record Your DataDay Dry Wt. Wet Wt.Difference

HeightDay 1 45 85.5 40.5Day 2 84 89.5 5.5Day 3 71.5 73 1.5Day 4 67.5 73.5 6Day 5 65 81 16Day 6 74.7 83.4 87Day 7 70.9 70.5 67.8

Interpret Your Data

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 My plant did not grow because we over water it and it had moled on the seed. (Describe any variables in your particular experiment.) Scientific errors that could have occurred and affected the results include (describe – for example used the wrong type of water )

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 It didn’t support it because we over water it and next time I’m going to put a little bit of water so it will grow