In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink. They examine printed paper with magnifying glasses, see a few demonstrations of how liquids behave differently at small scales, and see an explosive demonstration of how ink is forced out of an ink cartridge. This is a fun way to talk about how phenomena like surface tension become more important at small scales. Safety note: the demonstration involves fire—use appropriate caution.
Keywords:NSDL,surface tension,Gravity,Manufacturing Engineering,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-056,Computer science,Mathematics,Heat and Temperature,nanometer,Space Science,Materials science,oai:nsdl.org:2200/20120603191259778T,Engineering and Technology,picoliter,capillary tube,Computing and Information,printers,Nanotechnology,Manufacturing,Informal Education,Higher Education,Middle School,Early Elementary,Elementary School,nanotechnology,Chemistry,Physics,Information Technology,Heat Transfer,Upper Elementary,Computing,nanoscience,Engineering,High School,Space science,Pre-Kindergarten,Physical science,Education,Technology,inkjet printer