This paper argues in favor of Closed Captioned Video technology for incorporating nanotechnology as part of teaching science to English as a Second Language (ESL) students. Nanotechnology deals with particles with diameters 1-50 nm and provides a macro-context for science instruction. Closed Captioned Videos provide an effective tool for presenting nanotechnology information in a meaningful way to ESL students. Implications for science curriculum and instruction are discussed. (Contains 1 table and 1 endnote.)