I love a science lab that has real natural artifacts. This science lab in Chelsea Prep school (33M) was filled with living animals, dead animals, bones, hides and more.
There was also a friendly guinea pig, sitting right there in the middle of everything!

The science room at P33M, Chelsea Prep

Fish Tank with Red Devil Cichlids

Shark jaws, stingray jaws, shark eggs and babies in formaldehyde

Dolphin skeleton

Stuffed turtles

Live turtle

Assorted skulls and antlers

Puffer fish

Stuffed alligator

Live bearded dragon lizard

Random reptiles and larvae