Yes, chemistry practicals class can be the most scary. You never know if something might catch fire or break. It is imperative for the teacher and the lab assistant to be alert and monitor the practicals to avoid mishaps and injuries. I recall making blue crystals with a group of us creating them later for the annual science exhibition, too, & taking great pride in it. I did like the wonders of adding two or more things in the lab and seeing if the result was as the teacher said. Hated mugging up the chemical formulas though!
Physics was quite confusing for me and my mind often wandered....Only two aspects interested me: one was playing around with a magnet, just to see how many objects it could attract on my desk strongly enough to make them stick to it; and the other was the fascinating play of light through a prism.
Biology was interesting in some parts, such as knowing the different parts of the eye, ear and brain. Botany was also much enjoyed, what with lovely hibiscus flowers being the main centre of attention to know its parts. I intensely disliked learning about parts of a fish - what a stinking class, literally, that was! We also had giggly moments when shown a skeleton, with the usual jokes about what would happen if the latch of the showcase where it was hung was left open....would it go sleep-walking?!!
For all science subjects, one thing that I uniformly liked across all of them, was making diagrams with a pencil and ruler. It was great to see and self-admire a precisely drawn test tube or beaker, a prism or magnet, or a plant, all with arrows shooting out to indicate the names of the various parts. I have never been good at free-hand sketching as such, but somehow seemed to manage to draw the afore-mentioned things fairly well, with the teacher praising me a couple of times for the neat diagrams. Used to get thrilled about that!
When people come at you with their worst, you should come at them with your best (advice given to Selena Gomez by her mother, quoted in Time magazine.)