实验设计的基本原则1.科学性原则科学性原则是实验设计的首要原则,它要求实验目的要明确,实验原理要正确,实验材料选择要恰当,实验预期结果要科学。如2000年江苏卷理综试题第25题,实验目的就是题目中的“验证钙离子在血液凝固中的作用”;实验原理也已在题干中给出,即“血液中的 Basic principles of experimental design 1. Scientific principles The principle of science is the primary principle of experimental design. It requires that the purpose of the experiment be clear, the experimental principles must be correct, the choice of experimental materials should be appropriate, and the experimental expected results should be scientific. For example, in 2000, the 25th problem of Jiangsu Scroll Examination Question, the purpose of the experiment is to “verify the role of calcium ions in blood coagulation” in the title; the experimental principle has also been given in the dry matter, that is, “in the blood