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I apologize for the delay in getting the next lesson to you. I have been trying to improve the Learnalong, while trying to answer new questions brought up by new information.
Thanks to the results you sent in, we are getting closer to determining which chemical(s) in the coloring are causing the motion.
Between my website, Facebook, and other social media, I tend to get into a LOT of conversations about science, especially controversial topics such as climate change, genetic engineering, evolution, vaccines, nuclear power, electromagnetic fields, etc.
To learn about the world around us, we need information. In the practice of science, several methods used to gather that information. Some of the most common methods include:
Understanding chemical and physical changes is a strange part of science. Once you learn to use chemical equations, it is so simple that no one even thinks about it. Before you learn to use chemical equations, it is so complex that most people don't really understand it. For a better view of that, you might also read Changing How We Look at Changing.
This is a cool science trick that will let you know the number of sections in an orange (or other citrus fruit) before you slice it. It makes a fun trick that seems like magic, but is actually just a matter of careful observation.
