A teacher who wanted to shift from assessing compliance to assessing students’ thinking shares the tweaks she made in her ...

Last year, in July, Reine Protacio’s experiments suddenly stopped working. Every scientist encounters baffling results from time to time; you chalk it up to error, repeat the experiment, and hope for ...

Investigating Buffers - Two short experiments to discover the properties of buffer solutions. Practicing Titrations - A demonstration of the proper use of a burette system for titrations; including a ...

Gabriel Gomes believes the future of chemistry is as much about flasks and fume hoods as it is about code. A chemical engineer at Carnegie Mellon University, Gomes works at the intersection of ...