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  1. My EE research question is "How does varying concentrations of CaCO3 affect the catechin levels of green tea", but I'm running into problems into how exactly to measure it. The basis for my question is to test how does varying mineral content of water affect the taste of tea, and in my research I found that CaCO3 was one of the minerals in water, and catechin is the main component of green tea which affects the bitterness and astringency (effectively taste). I wanted to use spectroscopy but the maximum absorbance for catechin is around 270nm, which is far lower than the machine I have ava
  2. Hey guys! Do you think it is a good idea to write about the acidity in fruits for my extended essay? I was thinking like: How does the pH level change depending on the ripening of apples compared to bananas? I am not very good at formulating research questions (as you can see) lol.. but is the idea okay? Thanks in advance!
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