The preoperational stage is one of the many stages of a child's development. Piaget states that the most obvious change during the preoperational stage is the increase in a child's use language as a symbol or tool for communication. Though they can use language as symbols, they are still not able to form logic or transform ideas into understandable information.
<span>(1) Does the pH of water affect the growth of radish plants? </span><span>(2) pH of the water </span><span>(1) repeating the experiment several times</span>
