Threshold 3 looks at the creation of new chemical elements, other than Hydrogen and Helium, in stars.
Not studying at Macquarie? Check your school or local library for these titles.
Extension books have more in-depth information, but usually require some background knowledge in the area.
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Here are some helpful subject terms for Threshold 3:
The Periodic Table?
Try searching for chemical elements or periodic table. You could also search for Mendeleev, the man who developed the periodic table.