This step will require lots of ventilation because we will need the spray adhesive. If it is possible, take the model outside. Spray the center area of the model with the adhesive. Then place a sheet of newspaper under the model and carefully sprinkle all the iridescent flakes and various glitters onto the glue, catching any excess with the newspaper to be used again. Repeat this step as often as necessary until the entire model has been permeated with the flakes and glitter and approximates the look of the Galaxy. It may be necessary to turn the model over to get a consistent look.
The Milky Way Galaxy should be done and ready for installation. Just like the previous lesson about the Solar System, the school needs to view this structure. For some grounding, hang a small sign about 2/3 of the way out from the center denoting ‘our Solar System’. A written description of what the class created and some pictorials of the Galaxy should be exhibited also.
Extensions to lesson:
depending on the comprehension level of the class or their desire to further the lesson, create other scale models of our local area of the galaxy, the Orion arm
give info about all the various kinds of stars, i.e, red giants, white dwarfs, supernovas, etc.
more about our immediate ‘neighborhood’ of stars
an observatory and a planetarium field trip