But natural selection has stood the test of time as a basis for the science of biology.

VOA: special.2009.12.01

What's the method of science? You have a theory; what do you do? Put it to the test.

科学的方法是什么，现在有一个理论;,准备怎么办，验证它。

麻省理工公开课 - 固态化学导论课程节选

And I think this is what science is about. We continually test our ideas;

VOA: special.2009.12.01

These students are taking part in experiments designed to test their knowledge and inspire them to concentrate on science,technology, engineering and math.

VOA: standard.2010.05.10