What surprised me was the frequency hearing test we did. I remember doing the test last year in science class as well and back then I stopped hearing the sound at a lower frequency than when did the test recently. It makes me wonder what made me able to hear a higher frequency even though it has only been around a year. I became curious of the atomic model and the different theories and models that were discussed. It makes me curious on how the scientists came up with their theories and how they thought of which experiment to use to perfect the model.