Title: Investigating the Effect of Different Fertilizers on Plant Growth

Objective: To determine the impact of various fertilizers on the growth and development of plants.

Materials: 1. Four identical plant pots 2. Potting soil 3. Seeds of the same plant species (e.g., tomato, sunflower, or bean) 4. Four different types of fertilizers (e.g., organic, chemical, slow-release, and homemade) 5. Watering can or spray bottle 6. Measuring cup 7. Labels or markers 8. Ruler or measuring tape 9. Notebook or data recording sheet

Procedure: 1. Prepare the plant pots by filling them with equal amounts of potting soil. 2. Label each pot with the type of fertilizer it will receive (e.g., Pot 1: Organic, Pot 2: Chemical, Pot 3: Slow-release, Pot 4: Homemade). 3. Plant the seeds in each pot according to the recommended planting depth and spacing for the chosen plant species. 4. Water each pot with the same amount of water, ensuring that the soil is evenly moist. 5. Apply the corresponding fertilizer to each pot as follows: - Pot 1: Organic fertilizer as per the manufacturer’s instructions - Pot 2: Chemical fertilizer as per the manufacturer’s instructions - Pot 3: Slow-release fertilizer as per the manufacturer’s instructions - Pot 4: Homemade fertilizer (e.g., compost tea or diluted fish emulsion) as per the recommended application rate. 6. Place all the pots in an area with adequate sunlight and maintain consistent environmental conditions (temperature, humidity, etc.). 7. Water the plants regularly, ensuring that each pot receives the same amount of water. 8. Observe and record the growth of the plants at regular intervals (e.g., weekly) for a predetermined period (e.g., 4-6 weeks). 9. Measure and record the height of each plant using a ruler or measuring tape. 10. Take note of any other observable characteristics such as leaf color, number of leaves, or overall plant health. 11. Analyze and compare the data collected to determine the effect of different fertilizers on plant growth.

Note: It is important to maintain consistency in environmental conditions, watering, and fertilization throughout the experiment to obtain accurate results. Additionally, it is recommended to repeat the experiment multiple times or use a larger sample size to ensure reliability and validity of the findings.