Science Fair Project

1
Science Fair Project

• What Grows Best??
• 9-1 Project 2

2
Sections

• Section One Title
• Section Two Purpose
• Section Three Hypothesis
• Section Four Materials
• Section Five Method
• Section Six Variables
• Section Seven Results
• Section Eight Analysis
• Section Nine Conclusion
• Section Ten Sources of Error
• Section Eleven Ways to Improve

3
What Grows Best?
4
Purpose

• What type of water is best for growing grass?

5
Hypothesis

• My hypothesis is that the water with the
  Miracle-Gro added will make the grass grow the
  best. I think this because Miracle-Gro has
  nutrients added to it to make plants grow better
  and healthier.

6
Materials

• Soil
• Grass seeds
• Tap water (chlorinated)
• Spring water
• Tap water (unchlorinated for mixing other
  waters)
• Sugar
• Salt
• Miracle-Gro
• Measuring cups
• 15 Pots
• Labels
• 5 2L Bottles ( one for each water type)

7
Method

• 1. Gather all materials
• 2. For the pots of seeds put same amount of soil
  in all 15 pots.
• 3. Sprinkle each pot with an even layer of grass
  seed.
• 4. Place a thin layer of soil on top of seeds,
  but only enough that the seeds are covered.
• 5. For the water measure how many cups you place
  in each bottle.
• 6. Place unchlorinated tap water in 3 bottles.
• 7. Place chlorinated tap water in 1 bottle.
• 8. Place spring water in the last bottle.

8
Method

• 9. In one bottle of unchlorinated tap water
  place salt (1tpsp of salt for every cup of
  water)
• 10. In another bottle or unchlorinated tap water
  add sugar (1tpsp of sugar for every cup of water)
• 11. In the last bottle of unchlorinated tap water
  add Miracle-Gro ( 1tpsp of Miracle-Gro for every
  cup of water)
• 12. When the grass is planted and the water is
  mixed label the pots of grass. 3 for sugar water,
  3 for salt water, 3 for water with Miracle-Gro
  added, 3 for spring water and 3 for chlorinated
  tap water.
• 13. From that point place the grass in an area
  where it will receive sunlight and water the
  grass 2tpsp of water when needed. Record its
  height every three days. (Grass received the
  morning sun and was left to grow in the same
  spot).

9
Variables

• Manipulated The type of water used to water the
  grass
• Responding From the water used what grass grows
  best?
• Controlled Type of soil
• Amount of soil
• Type of grass seeds
• Amount of grass seeds
• Amount grass was watered
• Environment
• Amount of watering agent used

10
Results

• Heights of the grass at the end of the experiment
  were
• Water used Height
• _____Salt 0__
• ____Sugar 10cm
• ____Tap 11cm
• ____Spring 10cm
• Miracle-Gro 6cm

11

• Y-axis Height measured in cm
• X-axis Days

12
Conclusion

• In conclusion the grass watered with the tap
  water grew the tallest. Although this was the
  tallest, the grass watered by the sugar water was
  the thickest and looked the healthiest. The grass
  watered with the sugar water was also the first
  to start growing and it was the tallest until day
  22. If I was to pick a water to use on a plant I
  would pick the sugar water, because even though
  it wasn't tallest it was healthiest.
• My hypothesis was incorrect. I thought that the
  grass watered with the Miracle-Gro water would
  grow the best. When put to the test it was the
  worst. The grass watered by the Miracle-Gro water
  was the weakest (thin) and it stopped growing at
  day 19 and began to die.

13
Sources of Error

• Depending on what side of the table it was on
  some grass may have received more sunlight than
  other grass.
• Where each pot of grass was only watered so much
  the whole pot may have not gotten watered,
  leaving some seeds ungerminated.
• Where I was always touching the grass to water
  it, that may have affected its growing.
• The amounts of seeds that germinated in each
  pot.
• Soil may or may not have been dried out between
  watering.
• Solutions may have changed over time. (Weaker or
  stronger).

14
Ways to Improve

• Place grass in an area where you can be certain
  that sunlight is going to reach each pot equally.
• Measure amount of grass placed in each pot.
• Measure amount of soil placed in pots, below and
  above the grass seeds.
• Find another way to measure what water works
  best, so that the grass isn't touched as much.
• Water grass each day.