Color box with emulation of the visible spectrum to approach concepts about electromagnetic waves in elementary school. Research, Society and Development, [S. l.], v. 11, n. 7, p. e35511730066, 2022. DOI: 10.33448/rsd-v11i7.30066. Disponível em: https://rsdjournal.org/rsd/article/view/30066. Acesso em: 5 dec. 2025.