Acid Rain Research
The Effects of Acid Rain on Plant Growth
PURPOSE
The purpose of this experiment was to determine to what degree acid rain affects the growth of certain plants.
I became interested in this idea because I’m worried about our environmental conditions and it sounded very interesting to me.
The information gained from this experiment may be used to as a warning to stop air pollution.
HYPOTHESIS
My hypothesis is that the plant watered with the acid solution will grow more slowly than plant’s watered with regular rainwater.
I base my hypothesis on a book that has a picture of a tree that acid rain has fallen on compared to a regular tree.
EXPERIMENT DESIGN
The constants in this study were:
*The temperature where the plants were grown.
*The type of plant tested.
*The amount of water each day.
*The amount of sunlight each day.
*The amount of soil in each pot.
*The type of soil in each plant.
*The size of the pot.
*The shape of the pot.
The manipulated variable was the amount of acid in each watering solution.
The responding variable was the growth of each plant.
I will use a centimeter ruler to measure the responding variable, which is the height of the plant.
MATERIALS
QUANTITY
ITEM DESCRIPTION
4
plastic pots
4
spray bottles
1
pH metercfr or pH paper
2
eye droppers
4
liters of distilled water
1
marking pen
8
marking pen
1
Source of light
1
Bag of Potting soil
1
Bottle of lemon Juice
PROCEDURES
1. Fill each pot to the top with the potting soil.
2. Label one pot "acid" and the other "normal".
3. Place a seed into slightly moisted soil in each pot.
4. Water the seeds and soil.
5. Place both pots under a source of light.
6. Every two days, water with distilled water and place in the light.
7. Repeat step 6 until each plant has fully expanded a pair of leaves.
8. Pour 1 liter of distilled water into one of the empty spray bottles.
9. Mix 1 liter of distilled water with 5 drops of
PURPOSE
The purpose of this experiment was to determine to what degree acid rain affects the growth of certain plants.
I became interested in this idea because I’m worried about our environmental conditions and it sounded very interesting to me.
The information gained from this experiment may be used to as a warning to stop air pollution.
HYPOTHESIS
My hypothesis is that the plant watered with the acid solution will grow more slowly than plant’s watered with regular rainwater.
I base my hypothesis on a book that has a picture of a tree that acid rain has fallen on compared to a regular tree.
EXPERIMENT DESIGN
The constants in this study were:
*The temperature where the plants were grown.
*The type of plant tested.
*The amount of water each day.
*The amount of sunlight each day.
*The amount of soil in each pot.
*The type of soil in each plant.
*The size of the pot.
*The shape of the pot.
The manipulated variable was the amount of acid in each watering solution.
The responding variable was the growth of each plant.
I will use a centimeter ruler to measure the responding variable, which is the height of the plant.
MATERIALS
QUANTITY
ITEM DESCRIPTION
4
plastic pots
4
spray bottles
1
pH metercfr or pH paper
2
eye droppers
4
liters of distilled water
1
marking pen
8
marking pen
1
Source of light
1
Bag of Potting soil
1
Bottle of lemon Juice
PROCEDURES
1. Fill each pot to the top with the potting soil.
2. Label one pot "acid" and the other "normal".
3. Place a seed into slightly moisted soil in each pot.
4. Water the seeds and soil.
5. Place both pots under a source of light.
6. Every two days, water with distilled water and place in the light.
7. Repeat step 6 until each plant has fully expanded a pair of leaves.
8. Pour 1 liter of distilled water into one of the empty spray bottles.
9. Mix 1 liter of distilled water with 5 drops of
Bibliography: “Acid Rain,” Compton’s Interactive Encyclopedia, 1995 “Acid Rain,” Compton’s Interactive Encyclopedia, 2000 Acid Rain [online] http://tgvs.nws.noaa.gov/er/mhx/acid.htm Sep 5, 2013 Acid Rain [online] http://www.nws.noaa.gov/er/mhx/acidg.htm Sep 13, 2013 Brooks, John “Acid Rain” Chicago, Illinois, 1997 pp. 2-37 Likens, Gene E. “Acid Rain,” World Book Encyclopedia, 1991 Vol. 1 p. 27