Introduction: The Story of the Seed is a year long project that students will work on with our classmates in groups. In this ninth grade honors biology project we will watch the growth of a domestic vegetable, in our case we are recording the growth of four broccoli plants. We are not only studying how these plants are growing, but how we grow them. On September 2, 2014 we planted broccoli seeds into four different containers, each one containing nine seeds. We decided that we would study how different types of water impact how big the plants grow. Our group, consisting of five ninth graders, determined we would water the plants with carbonated` water, filtered Brita water, bottled water, and we are watering the control group plant with tap water. We have started growing these plants in class for two weeks today on the eleventh of September, 2014 our plants will be planted in the outside school garden and watered with the same waters to see how the plants will grow in a expanded growing area.

Purpose: Our purpose is to see which water is more effective in growing the plants. This means we are studying which type of water (carbonated, filtered Brita, bottled, and tap) are most efficient in making the plants grow tall and be healthy.

Independent Variable: Different Types of Water

Dependent Variable: Plant Growth

Hypothesis: We believe that if we water our plants with different types of water it will affect their growth.

What we think will do the best

1. Bottled Water
2. Filtered Water
3. Tap Water
4. Carbonated Water

We chose this as our hypothesis because we thought that clear water with nothing in it, like bottled water, would not give a poorly affect on our plant. Next is filtered, that also contained little contaminates, then tap, our control, then carbonated.

Materials:

1. Tap Water   
2. Filtered Water
3. Bottled Water
4. Carbonated Water
5. Broccoli Seeds
6. Pots
7. Potting Soil

Control: The control for our experiment is a plant that is being watered with 100mL of tap water.

Procedure:

1) Make sure soil amount is equal in a containers.

2) Distribute nine seeds per each of our four containers.

3) Water the plants individually with one hundred milliliters of their assigned water brand.

4) Place watered plants in a spot where they would all receive equal amounts of sunlight.

5) Water the plants every week on the same day with the same amount of water.

Graph:

Results:

	Filtered	Carbonated	Tap	Bottled
Day 6	7 cm	6.5 cm	6.5 cm	7.5 cm
Day 11	9.7 cm	10 cm	10 cm	9.5 cm

Conclusion: The plant watered with carbonated and tap  water grew the tallest and the plant watered with bottled water grew the least. Our hypothesis was incorrect because the carbonated water had turned out to grow the most when we had thought it would grow the least. We had thought the bottled water would grow the tallest but turned out to be the shortest.

Discussion: Or group project did work out rather successfully, in the sense that we have completed the project, but this group effort could’ve gone better. We started our project a couple days later than we could’ve had, so we could have had more data and results by now. Our group also did not research on the plant type so we did not obtain additional information that might have been useful. Another issue we faced was when one of the plants fell out of its container along with the soil that was in the pot, hopefully the broccoli seedling’s growth will not be affected by this accident.  Otherwise, all else went well with this experiment.