How is the growth rate of bean plants affected by
different types of water?
We are going to be exploring the affect that different type of water have on the growth rate of bean plants. We will be experimenting with two different types of bean plants and testing
three different types of water.
PH is basically the negative log of hydrogen ion activity used to measure the acidity or basicity. The pH level ranges on a scale from one to fourteen, one being most acidic, fourteen being most basic, and seven being neutral (Soil pH and Fertilizers). A pH level of 6.5 or slightly acidic is ideal to most plants because nutrients are most readily available between a range of six to seven (Soil pH and Fertilizers). If the pH falls below four or above nine, a living organism dies(Water Quality Tests). The pH of a soil is its measure of relative acidity or alkalinity; pH is an acronym for potential hydrogen. The availability of nutrients is directly affected by soil pH. Past studies have shown that pH is a strong indicator of soils that are chemical properties. The hypothesis for our experiment is that all the plant trials will grow, but the filtered water plants will grow most rapidly, as filtered water has fewer contaminants and more nutrients. By completing this experiment, we plan to determine which type of water is ideal for growing the healthiest indoor
plant. The results of this experiment may be relevant in greenhouse and indoor planting.
In our experiment we will also be considering the effects that the pH has on the soil. Soil that is too acidic or too basic does not promote healthy plant growth, due to the fact that, in both cases, the plants are deprived of their nutrients, which is harmful to helpful
bacteria. If the soil�s pH is too high or too low, some nutrients become insoluble, limiting the availability of these nutrients to the plant root system. Our goal is not only to study the pH levels of
soil, but to compare... [continues]
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