Microorganisms

Question: How will it affect a plants growth if there is know microorganisms in the plants soil?

Hypothesis: Without microorganisms the plant will not grow well due to know microorganisms to break up soil and provide aeration to help the plant with its development.

Materials:

· Dirt (about 2 cups)

· Seeds (Garden Bean)

· Water

· Container (2 Medium)



Procedures:

· Take 1 cup of dirt; put it into the oven on 300°F until it dries. (This will kill microorganisms). Manipulated variable

· Leave the other aside as. Control variable.

· Once dirt is done baking put baked dirt in a container and put the non-baked dirt into another container.

· Plants 3 seeds in each cup. Put them about 1 inch below dirt. Then cover.

· Add only enough water for the plants (about 4 TBS) in each container.

· Treat both plants the same; amount of water, temperature, light, ect.

· Then mark on the cup weather the soil contains microorganisms or does not.

· Continue adding water each day for 3 weeks and record the plants growth, and anything else that is important such as number of plants that grew, ect.



Data:

Week 1 Microorgansims

3/3/05 Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7

Height ½ inch(seed) 1 inch (seed) 3cm 3 ¼ cm ½ inch ¾ inch 1 inch

# sprouts None None 1 1 1 1 1

color Seed white Seed green Green Green Green Green Green

Other

Week 1 No-Microorganisms

Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7

Height ½ inch (seed) 1 inch (seed) 3cm 3 ½ cm ½ inch 1 inch 1 ½ inch

# sprouts None None 1 1 2 2 2

Color Seed white Seed green Green Green Green Green Green

Other

Week 2 Microorgansims

Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7

Height 1 ¼ inch 1 ¼ inch 1 ½ inch 1 ¾ inch 2 inch 2 inch 2 ¼ inch

# sprouts 1 1 1 1 1 1 1

Color Green Green...