

Each career level will allow you to more breakthroughs, so the first three levels of the career will give you one invention breakthrough, one serum breakthrough and from level 7 to level 10, you will get six inventions and fifteen serums. Barrowmanting on the chemical analyzer will also help you achieve breakthroughs, and each breakthrough will enable your sim to create a new invention or serum. If you use a chemical analyzer to experiment, you will get various elements. It will give you a second crystal or metal, as shown in the image below. You can also get more materials by analyzing crystals or metals on the chemical analyzer.

There are a lot of sites around the workplace building that are great for minerals and crystals, and also you can ask your co-worker to give you metal, crystal or a DNA sample. You can also buy starter seed packets which will give you a base of ingredients to make serums. You have to get these collectables early in your career. The science career has a lot of inventing, and these inventions require materials to make like metals, crystals, elements, and various plants for serums.
