Is this a good science fair project?

Question

will plants grow better if watered with milk or water?

if so, where can i find information that can be used for my research paper?

Answer 1

Yes, that is a perfectly fine science fair project.

In terms of research, you simply need to look up references that tell you what you should expect to find in milk and what sort of things plants like to have for growth. You could also research how plants convert nutrients from the soil into something that they can use. In addition, look up some references on scientific method.

You should use several types of plants (be sure to use palnts that will germinate and grow significantly within your available time frame). You need to be careful about the soil that you use. You could use a nutrient-free soil if you want to demonstrate whether or not plants are capable of deriving any benefit directly from the milk. Or you might want to use a soil with specific nutrients if you feel that the milk would help the plants to better utilize the available soil nutrients.

Be careful to keep all other variables minimized - For example, make sure that the plants get the same amount of light and darkness and are kept at the same temperature. Make sure that the plants all receive the same amount of water or milk.

Answer 2

It sounds good to me.
You need to make a hypothesis first. That is, a guess based on what you know about plants.