Beirut Baptist School Y1 6.SC. NOUR.90 16.1.
2024
Academic year: 2024 - 2025 Date: 16/1/2024
Subject: Science Grade: 6 A, B, C, D
Teacher: Nour Shokor
Student: ____________________
Performance Task
Investigating the Effect of Natural Fertilizers on Growth of Plants
Introduction
Natural fertilizers provide essential nutrients to the soil, promoting healthy plant growth. Examples include
eggshells (rich in calcium) and banana peels (high in potassium).
The problem
Do the natural fertilizers have an effect on plant growth?
Your task
In this experiment, you will compare the growth of seeds in two pots: one with soil only (control) and
another with soil mixed with a natural fertilizer (experimental). Your goal is to determine how the natural
fertilizer affects the height of the stem over 10 days.
Hypothesis:
Write your hypothesis about the effect of natural fertilizers on plant growth.
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Materials needed
Seeds (e.g., beans, peas, or other easily germinated seeds)
Natural fertilizer (e.g., crushed eggshells or chopped banana peels)
2 planting pots or containers
Soil
Water
Ruler (to measure stem height)
Notebook or observation sheet
Labels (to mark the pots)
Procedures
1. Label two pots as follows:
- Control: Soil only, no fertilizer.
- Experimental: Soil mixed with your chosen natural fertilizer (e.g., eggshells or banana peels).
2. Fill both pots with the same amount of soil and plant an equal number of seeds in each pot.
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3. Water the seeds daily with the same amount of water and place the pots in similar lighting conditions.
4. Measure the height of both stems in each pot every day for 10 days using a ruler.
5. Record your measurements.
Recording Data
Record the height of the stem (in cm) for each day:
Day Control Pot(cm) Experimental Pot(cm)
Day 1
Day 2
Day 3
Day 4
Day 5
Day 6
Day 7
Day 8
Day 9
Day 10
Results and Discussions
Analyze through justifying the results of both pots.
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Conclusion
Write a conclusion about the effect of natural fertilizers on plant growth.
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