Contrasting Labs

My two science classes this semester are Biology and Chemistry, and while they're both lecture-based classes, there's a three-hour lab once a week for each class. Over the past few weeks, I've noticed a few differences between Bio lab and Chem lab, and am just figuring out the reasons now.

There are chairs in the Bio lab, but not in the Chem lab-- my guess is that Chemistry experiments involve more splashes and spills that might require suddenly leaping away from the work table.

We wear gloves but no goggles in Bio lab, and goggles but no gloves in Chem lab-- again, splashes are more of a danger with Chemistry; in Biology experiments, it's more important to not to get contaminated by or contaminate any bacteria or other organisms being handled.

We use micropipettes in Bio lab and pipettes in Chem lab-- when your environment is an agar plate, even a tiny amount of bacteria or chemical is enough to see results. Chemistry labs, based on calculations more than observations, require larger amounts of chemicals to get accurate numbers with the equipment available. On the other hand, it could just be more fun to watch reactions on a large scale.