This first post will account for introductory concepts for Chemistry, the natural science that studies matter. Any proper Bio course has to discuss Chemistry; we are living beings made out of star stuff, aware of what makes us, so let’s see what important topics from Chemistry we need to understand what makes us alive.
Two Youtube Channels will be very important throughout the school year: Crash Course and Khan Academy. For this our introduction to Bio, we’ll use Crash Course Chemistry. If we want to understand what makes the physical world possible, we need to consider the science that studies the nature of matter. The following videos will show you what Chemistry is all about. Very simply put, Chemistry is the story of how protons, electrons and neutrons came together to make everything–stars, bacteria, gold–possible:
Now that you’ve watched these videos, which account for a very brief summary of what chemistry is, we can now discuss what probably is the most important chemical compound for life in our planet: water. The following videos describe how important water is. We’ve already discussed in class the properties of water; but these properties owe their existence to the chemical configuration of this unique molecule, made out of very simple and abundant elements: