Thanks for these videos! Just one small correction is that you made an error in your first two measurements of the temperature. By my eye, I got about 16.3 and 16.9 degrees Celsius respectively (estimating the uncertain digit). That should make those two initial values more reasonable. With those corrections, I got approximately 5200 J/kg*˚C for the specific heat capacity.
Can you do a video about A level physics. I want to study it but not so sure what’s it like/potential careers etc or whether to either do physics or engineering