I consider automation, logistics, and military science packs to be the most basic, and they have a casting recipe in the foundry.
For chemical and space science packs, the new recipes are in the biochamber; they are the same as vanilla but benefit from the built-in productivity bonus.
Production and utility science packs are made with slightly different recipes, but they also include a few intermediate crafting steps.

Each of these three groups has a special crafting bonus technology. For balance, the two late-game science packs (cryogenic & prometium) also have a crafting bonus technology.