We learned about the half lives of radioactive elements today and played a game consisting of cutting out .5in squares, shaking the squares in a cup and removing the turned squares, represented as one half life, before repeating the process. I also found a good website for the star blog to help with light spectrum of elements and what elements are found in specific stars.
Visible Spectra of the Elements
Stellar Database
Lunapic (used for cropping pictures of visible spectrum)
I wish I had found those sources earlier, they would have been extremely helpful, thank you for sharing them.
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