Im doing a science fair project on how fertilizer and sun effect the growth of grass

thank you but it didn't help got anything else

The sites that SraJMcGin posted provide good background material for your project.

You need to conduct your own experiment which will probably take several weeks. Mark off four sections of your lawn. Two should be in the sun and two in the shade. Apply fertilizer to one section in the shade and one section in the sun. Make sure all sections receive the same amount of water. Measure the height of the grass in each plot every other day and keep a record of your measurements. Also note when you mow, how much fertilizer you used and when.

That's a great science fair project idea! To explore how fertilizer and sunlight affect the growth of grass, here are some steps to follow:

1. Research: Start by learning about the requirements of grass and how fertilizer and sunlight impact its growth. You can find information in books, scientific articles, or reliable websites.

2. Hypothesis: Based on your research, come up with a hypothesis, which is an educated guess about what you expect to happen. For example, you could hypothesize that grass treated with fertilizer and exposed to more sunlight will grow taller and thicker than grass without these factors.

3. Control and Variables: Identify your control group and variables. The control group represents the standard conditions, so for this project, it could be grass without any fertilizer or extra sunlight. The variables would be grass with different amounts of fertilizer and different levels of sunlight exposure.

4. Experimental Setup: Set up different test areas for each treatment group. Mark them clearly and separate them to avoid any cross-contamination.

5. Fertilizer: Apply different amounts and types of fertilizer to the designated areas. Make sure to follow the manufacturer's instructions for proper application.

6. Sunlight: Arrange for varying levels of sunlight exposure for each group. You can use shade cloths or create barriers to control the amount of sunlight reaching each designated area.

7. Watering: Ensure all grass areas receive equal amounts of water to maintain consistency in the experiment.

8. Observation and Data Collection: Regularly observe and record the growth of grass in each treatment group. Measure the height and thickness of the grass using a ruler or tape measure. Take photos to document the progress.

9. Data Analysis: Once you have collected your data, analyze it to determine any patterns or differences in growth between the different treatment groups.

10. Conclusion: Based on your observations and analysis, draw conclusions about how fertilizer and sunlight affect the growth of grass. Refer back to your initial hypothesis and discuss whether it was supported or rejected.

Remember to include graphs, charts, and other visual aids in your project to present your findings effectively. Good luck with your science fair project!