Rapitest Soil Test Kit

Improve your garden or study the effects of soil nutrients on plant growth! This kit lets you test soil for pH, nitrogen, phosphorous, and potassium. Perform the 4 easy color comparison tests 10 times each. Rapitest.

The following questions might help you come up with a good environmental science fair project: What pH and chemical levels are most common in your area? How do garden soils with different amounts of nitrogen, phosphorous, potash, or pH compare?