This module links the compounds in the nucleus with the appearance of the ion plasma tails as well. The game and comet-making activity are good opportunities to introduce the general idea of organic materials. An exercise to help students with the idea of organic substances is to have them find as many examples as they can in the picture that illustrates the glossary entry. CO2 in the bowl. Water in the bowl.
Wooden spoon is made of many organic substances, including cellulose.
Leather glove, and The boy himself Boy's shirt probably contains cotton, a plant fiber, which is yet another organic mixture. If you make comets, they will be mostly water and carbon dioxide. Amazing, but this is part of what makes comets truly interesting today. These might have to do with the various changes in climate conditions over the earth's history. Not to be confused with the great comet of 1680, a daylight comet with an astounding seventy-degree tail.