Historical clue formulations

• Sci. class in a lab — 2025-10-13
• Sci. class that might have controlled explosions — 2023-01-23
• STEM subject that rhymes with "stem" — 2023-01-01
• With 51-Down, where solutions are kept, in brief — 2021-07-24
• Physics prereq., maybe — 2018-10-09
• Nobel Prize category: Abbr. — 2018-07-26
• Bond analysts' field?: Abbr. — 2009-06-13
• ___ lab — 2004-12-18
• Sci. class — 2004-04-10
• H.S. class — 2002-12-03
• With 5-Down, where reactions take place — 2001-02-12
• Sci. course — 1999-03-17
• Sci. class — 1995-01-16