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Lumen · High school
Lavoisier weighs the air that burning takes. Mercury calx gives the vital part back. The candle course watches a flame; this one keeps the books.
Student age
10years · 5th grade
Lumen · High school
Lavoisier weighs the air that burning takes. Mercury calx gives the vital part back. The candle course watches a flame; this one keeps the books.
Student age
10years · 5th grade