One way in which scientists learn about how nature works is conduct a controlled experiment.To begin,scientists isolate variables,or factors that can change within a system or situation begin studied.An experiment involving single-variable analysis is designed to isolate and study the effects of one variable at a time.
科學家想得知自然作用與自然行為受限的實驗,一開始,科學家先有計畫的隔離出可改變系統或地點的易變物或因素.在這實驗,科學家去分析易變物遭隔離所發生的作用與情況.
沒有留言:
張貼留言