I never heard anything about R’ Lamm shlita making a brachah when entering a science lab. But if it is true, I would marvel at him.
When I took science classes in high school, one or two teachers would say, “Look at how wonderful Hashem’s world is!” But it wasn’t said often enough. In a math class I took in college, one professor showed us how calculus can be used to explain a Gemara.
If R’ Lamm feels he should make a brachah when entering a science lab, obviously he looks at science and thinks about it in terms of Torah. He uses science to help him understand his learning, and how wonderful the tevah that Hashem created truly is. I envy someone who looks at science that way!
When we learn “secular” subjects, but learn them in order to better understand the Torah, they are not secular! That learning then becomes part of learning Torah.