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101 exploring life

101 exploring life

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Practice Writing a Lab Report

Instructions: Use the lab example given to complete the Practice Writing a Lab Report activity.

Please fill in this lab report with the appropriate information and data.

Title:

Mia Schou, Mrs. Winebrenner, The Effects of Chemical and Organic Fertilizer on Plant Growth

Objective(s):

The purpose of this lab, is to determine what effects chemical and organic fertilizer will have on

the growth of a plant.

Hypotheses:

John’s hypothesis is, the organic fertilizer will make the plants grow taller than the chemical

fertilizer.

Variables:

∙ Independent Variable: type of fertilizer: chemical, organic, none

∙ Dependent Variable: rate of growth in the plants with different fertilizers.

∙ Controlled Variable: type of seed, soil, and water

Materials:

o 3 pots

o 3 seeds (same type)

o Soil

o Organic fertilizer

o Chemical fertilizer

o Water

o Ruler

Procedures:

The procedures are listed in Practice Writing a Lab Report Activity. You do not need to include

them here.

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Data and Observations:

By the tenth day, the plant with chemical fertilizer grew the most.

Data: Height of Plant

Days

No fertilizer (cm)

Chemical Fertilizer (cm)

Organic Fertilizer (cm)

0.5

1.3

1.9

0.3

2.2

1.6

4.5

3.2

0.2

5.2

3.8

Conclusion:

In conclusion, Johns hypothesis was incorrect. He predicted the plant with organic

fertilizer would grow the tallest. Once the experiment concluded, he was proven otherwise when

the chemical fertilizer exhibited the largest growth.

Based on the data in the table, the plant with chemical fertilizer produced the best results.

On day five the plant already hit 0.5cm, it began showing results two days before the organic

fertilizer (the runner up). And on day ten the plant with chemical fertilizer had grown to be

5.2cm. The plant with organic fertilizer reached a height of 3.8cm on day ten, determining it to

be the second most effective.

The plant with no fertilizer did not give impressing results. With its first sign of growth

showing on the tenth day, and only reaching a height of 0.2cm. This plant was easily determined

to be the least effective. This experiment could be tested further by, adding additional types of

fertilizer and testing the effects on the plant, compared to the two we have currently.

Questions:

I would improve this experiment by adding a new independent variable being the type of

seeds used. Then I would test how the two fertilizers effected different plants growth rate. I could

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Practice Writing a Lab Report Instructions: Use the lab example given to complete the Practice Writing a Lab Report activity. Please fill in this lab report with the appropriate information and data. Title: Mia Schou, Mrs. Winebrenner, The Effects of Chemical and Organic Fertilizer on Plant Growth Objective(s): The purpose of this lab, is to determine what effects chemical and organic fertilizer will have on the growth of a plant. Hypotheses: John’s hypothesis is, the organic fertilizer will make the plants grow taller than the chemical fertilizer. Variables: ∙ ∙ ∙ Independent Variable: type of fertilizer: chemical, organic, none Dependent Variable: rate of growth in the plants with different fertilizers. Controlled Variable: type of seed, soil, and water Materials: o o o o o o o 3 pots 3 seeds (same type) Soil Organic fertilizer Chemical fertilizer Water Ruler Procedures: ...
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