Science and mathematics describe how the physical world works. If you have a good understanding of how the physical world works, then you are not confused by why things happen the way they do, or why things have to be done a certain way to be effective.
Technology and Engineering use the knowledge of how the world works to solve problems. If you can use engineering concepts and knowledge about how the world works, you can solve problems for people in your life outside of work.
Remember communication is important too. People who communicate well with others, either through verbal or written, will always be respected. It adds to the respect people give you if what you is is scientifically accurate. Meaning, "it works" the way you say it does.
I like to cook. I use STEM concepts in cooking like this. I measure ingredients accurately and consistency, like I learned in chemistry, This makes my dishes turn out consistent time after time. I also think about heat flow. When I want something to get hot faster, or stay hot longer, I plug the heat leaks so heat is not wasted. meaning, I put a lid on what I'm trying to heat up. When I want something to cool down faster, I think of how I can get the heat carried away faster. Example, I make 5 servings of oatmeal for breakfast for each day of the week, I want one of them to be hot when I eat it, but the others I want to have them cool faster. I cook the oatmeal and put divide it into 5 containers. I wrap the container I will eat that morning in towels including the bottom, so the heat does not leak out while I'm taking a shower. I put the other 4 on a wire rack, put them in a cool place like the garage, and even have a small fan to blow air over the top and bottom. This cools it faster. Getting the 4 oatmeal containers to room temperature faster reduces the work the refrigerator has to perform to transfer the heat from the middle of the oatmeal to outside the refrigerator, and saves a small amount of electricity and ewar and tear on the refrigerator (i.e. saves money).
When I thaw meat, I think, 'OK how can I do this in a way that will get the meat to a temperature higher than freezing in a shorter period of time, without allowing the meat to get much warmer than freezing , so the bacteria does not multiply very fast and cause food poisoning?' I completely submerge it into a container of cool water with a lid on it. This uses the heat from the water to warm the meat, but having it in a container with a lid, prevents the water near the surface from getting too warm too fast. I've seen some people who misunderstand how to thaw meat, and so they just put the meat in water, with half the frozen meat above the water line. I guess it's only half as bad as just thawing the meat on the counter, cause only half the meat has bacteria on it that are multiplying quickly. Also understanding that the rate of heat flow depends on the difference in temperature explains why frozen meat takes days to thaw when in the fridge where the temperature difference is very small.
Here's a You Tube video that combines all 5 concepts. STEM and Communication, in the kitchen. https://youtu.be/1OfxlSG6q5Y . The guy communicates how an understanding of the physical world enabled the engineers to elegantly solve a problem in the kitchen. Creating the Technology Connections You Tube channel was just his "sporadic hobby" until he got so good that people paid him enough to make it ". . . well, my job!" (taken from his description)