I pride myself on conducting spur of the moment experiments BUT making sure that I really tie in the scientific inquiry process. My students and I collaborated for this attachment (Literally, 45 minutes before leaving for a field trip! LOL).
I LOVEEEDDD doing this experiment and TRUST ME, the instructional investment is worth it. My students have ALWAYS excelled on the Grade 3 Science SOL, and I teach students with varying abilities. The instructional conversations that will come from this are hugely beneficial!